Wikipedia talk:WikiProject Astronomical objects/Archive1
From Wikipedia, the free encyclopedia
"The Earth is the cradle of humanity, but one can not live in a cradle forever" ~ Konstantin Tsiolkovsky
The purpose of this wiki-project is to create, improve and standardize articles for astronomical objects, which includes notable objects that exist outside of the Earth. The templates to list basic information, along with guideline reccomendations, are given below.
Wikipedia Project: Astronomical objects (edit or discuss this box) |
Galaxies | [ Related changes ] |
IC objects | [ Related changes ] |
Messier objects | [ Related changes ] |
NGC objects | [ Related changes ] |
Messier 73, Jewel Box, (Kappa Crucis Cluster),
Contents |
Overall footer
- Template:Astronomy-footer - General subfields within astronomy
Useful Templates
When filling in scientific data, you may find the following templates useful:
- {{±|pos|neg}} which produces: +pos−neg used thus: 500 +35−22 km. (Avoid using it in a link, though: it looks bad)
- {{e|n}} which produces: ×10n used thus: 5.97{{e|24}} kg, which gives 5.97×1024 kg.
Articles listed for deletion
- Whatmough's planet types (AfD discussion)
- Sulfur jovian (AfD discussion)
Planets and moons
[image of object] | |||||||
Discovery | |||||||
---|---|---|---|---|---|---|---|
Discovered by | ___name___ | ||||||
Discovered on | ___date___ | ||||||
Orbital characteristics (Epoch J2000) | |||||||
Semi-major axis | km (AU) |
||||||
Ortbital circumference | Tm (AU) | ||||||
Eccentricity | number | ||||||
Perihelion | km (AU) | ||||||
Aphelion | km (AU) | ||||||
Orbital period | d (other units, such as Julian years) | ||||||
Synodic period | d (a) (w/respect to Earth) |
||||||
Avg. orbital speed | km/s | ||||||
Max. orbital speed | km/s | ||||||
Min. orbital speed | km/s | ||||||
Inclination (to Ecliptic) | ° (° to Sun's equator) |
||||||
Longitude of the ascending node |
decimal ° (° ' ") | ||||||
Argument of the perihelion |
decimal ° (° ' ") | ||||||
Satellites | number | ||||||
Satellite of | planet (only for Moons) | ||||||
Physical characteristics | |||||||
Mean diameter | km (axis × axis × axis for ellipsoids) | ||||||
Equatorial diameter | km (Earth units) | ||||||
Polar diameter | km (Earth units) | ||||||
Oblateness | number | ||||||
Surface area | km2 (Earth units) | ||||||
Volume | km3 (Earth units) | ||||||
Mass | kg (Earth units) | ||||||
Mean density | g/cm3 | ||||||
Surface gravity | m/s2 (gees) | ||||||
Escape velocity | km/s | ||||||
Rotation period | d (h) | ||||||
Rotation velocity | km/h (m/s) (at the equator) | ||||||
Obliquity | ° | ||||||
Right ascension of North pole |
° (h min s) | ||||||
Declination | ° | ||||||
Albedo | number | ||||||
Surface temperature |
|
||||||
Atmospheric characteristics | |||||||
Pressure | kPa | ||||||
most common | % | ||||||
next-most-common | % | ||||||
etcetera | % |
This page is where work is being done to come up with a generic table template to be used for organizing a list of facts about various astronomical bodies such as planets, natural satellites, and maybe also smaller bodies such as asteroids and comets (though I suspect that both asteroids and comets will be better served by having their own template design).
Most of these entries should be measured in SI units. Some of them, however, should have more "human-accessible" units, in addition to SI units. I've indicated some cases with a second unit name in brackets. In the case of times (orbital periods, rotation), I think it best to give all periods in days for comparison purposes, and provide a translation (in parentheses) into years, days, hours, etc.; whatever is most appropriate for the duration being described.
Oh, and compared to table templates for things like the elements, I think that this template should be considered somewhat more flexible. Moons with no atmosphere whatsoever could skip the atmospheric composition section entirely, for example (though atmospheric density would still be listed). Moons also wouldn't have their orbital radii listed in AU, since AUs are such large units. For planets, use "perihelion" and "aphelion" instead of "periapsis" and "apoapsis."
In the case of "number of moons" and "is a moon of", only one of these rows will be used by any given object. There aren't any moons with moons (yet), though perhaps "co-orbital with" might be a useful row to add in a few cases.
A set of colours for use in the 2-column headers of this table:
rocky terrestrial body | Transition metal color from the periodic table; rocky planets have lots of metals compared to the icy ones. Also, red is a "warmer" color than green, which fits the distribution of rocky and icy planets in the solar system. |
---|---|
icy terrestrial body | green contrasts nicely with the pink of rocky planets. Also, on the periodic table, it's the color of carbon, oxygen, hydrogen, and other common components of outer-solar-system ice. |
gas giant body | blue skies, and noble gases on the periodic table (including helium, which is only found in large quantities on gas giants. It escapes from smaller planets). Also, two out of four gas giants prefer the cool soothing color of blue. |
On orbital characteristics: The orbital circumference should be computed from the semi-major axis using Ramanujan's approximation for ellipses. The ratio of that circumference to the period then gives the average orbital speed. The minimum and maximum speeds follow from Kepler's laws: and . Note that, by convention, all orbital parameters are given in the primocentric reference system (heliocentric for the planets).
On physical characteristics: The surface area and volume of non-spherical objects (e.g. moonlets, asteroids) must use the proper ellipsoid formulae, because even slight departures from sphericity will make a large difference, particularly for the area.
On the subject of obliquity: Obliquity is the angle between the object's axis of rotation and the normal to the plane of its orbit. Do not confuse this with the Tilt listed in the JPL pages, which is a measure of the angle between the local Laplace plane and the primary's equatorial plane. In fact, most inner moons have synchronous rotations, so their obliquities will be, by definition, zero. Outer moons simply have not been seen from close up enough to determine their true obliquities (although Phoebe, recently seen by the Cassini probe, is an exception; see Talk:Phoebe (moon) for the derivation of its obliquity).
Conversion log
Still to be done:
Done:
|
Planet Template
Orbital characteristics |
---|
Template: {{Planet}}
The above fields need incorporating into this template.
Footers
- Template:Footer SolarSystem - Planets in our Solar system
- Template:Mars Footer - Mars' natural satellites
- Template:Jupiter Footer - Jupiter's natural satellites (condensed)
- Template:Jupiter Full Footer - Jupiter's natural satellites (exhaustive)
- Template:Saturn Footer - Saturn's natural satellites (condensed)
- Template:Saturn Full Footer - Saturn's natural satellites (exhaustive)
- Template:Uranus Footer - Uranus's natural satellites
- Template:Neptune Footer - Neptune's natural satellites
- Template:Pluto Footer - Pluto and its natural satellites
Useful sources
- JPL's SSD, Natural Satellite Physical Parameters
- JPL's SSD, Planetary Satellite Mean Orbital Parameters
- Solarviews
- The Nine Planets
Minor planets (asteroids, comets, Kuiperoids, etc)
{{minor planet}} | {{Minor Planet}} | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Template:Minor planet |
|
The example on the far right is the recommended table format for minor planets —note the recommended unit links. It is generated by the {{Minor Planet}} template. The template has an optional astron argument whose default value is helion; this allows its use to describe asteroid moons, as in the S/2000 (1998 WW31) 1 example.
Urhixidur wrote a nifty Windows tool that can greatly facilitate preparation of these. The most recent version can be downloaded from http://www.bigfoot.com/~D.U.Thibault (at the bottom of the page, under the heading "Delphi 7 and Wikipedia").
A more compact form of this with just the orbital elements is on the near right {{Minor planet}} (note the lower case 'p'). The two are incompatible at the moment, something which Nicholas intends to fix one day.
A few short-hand templates are useful when dealing with asteroids with provisional designations. They are Template:mp, Template:mpl, and Template:mpl-. Mpl ("minor planet link") is used to write a link, like so {{mpl|(15874) 1996 TL|66}} = (15874) 1996 TL66, whilst mp ("minor planet") saves you from typing <sub></sub> if you'd rather not: {{mp|(15874) 1996 TL|66}} = (15874) 1996 TL66. Mpl- is used with numbered asteroids that have kept (so far) their provisional designations: {{mpl-|15760|1992 QB|1}} = 1992 QB1 instead of (15760) 1992 QB1.
Footers
- Template:MinorPlanets Footer - Minor planets
- Template:MinorPlanets Navigator - Minor planet sequential navigator
- Template:PeriodicComets Navigator - Periodic comet sequential navigator
- Template:Footer TransNeptunian - Large Trans-Neptunian objects (TNOs)
- Template:TNO - Small list of TNO-related topics
Particularly useful are {{MinorPlanets Navigator}} and {{MinorPlanets Footer}}. Scroll down beyond the table to the right to see examples of these.
Minor planets | ||
---|---|---|
Previous minor planet | 14 Irene | Next minor planet |
List of asteroids |
Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Comets · Trans-Neptunians (Kuiper belt • Scattered disc • Oort cloud)
For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons and the Solar System.
For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.
Comets
Comet (List of comets) |
|
---|---|
Nucleus imaged by the Deep Impact impactor |
|
Discovery | |
Discoverer | Ernst Wilhelm Leberecht Tempel |
Discovery date | April 3, 1867 |
Alternate designations |
9P/1867 G1; 1867 II; 9P/1873 G1; 1873 I; 1873a 1879 III; 1879b 9P/1967 L1; 1966 VII 9P/1972 A1; 1972 V; 1972a 1978 II; 1977i 1983 XI; 1982j 1989 I; 1987e1 1994 XIX; 1993c |
Orbital elements A | |
|
|
Eccentricity (e) | 0.5175 |
Semi-major axis (a) | 3.122 AU |
Perihelion (q) | 1.506 AU |
Aphelion (Q) | 4.737 AU |
Orbital period (P) | 5.515 a |
Inclination (i) | 10.5301° |
Last perihelion date | July 5, 2005 |
Next est. perihelion date | 2011 |
As discussed above, comets might be served better by a different template. Here is a suggestion for {{Comet}} we can toy with until we are happy with it. Awolf002 00:23, 5 December 2005 (UTC)
Comets | ||
---|---|---|
Previous periodic comet | 9P/Tempel | Next periodic comet |
List of periodic comets |
Stars
Starbox tree
{{subst:Starbox begin | name = Alpha Centauri }}
|-
| colspan="2" style="text-align:center;" |
|- ! style="background-color: #FFFFC0;" colspan="2" | Observation data
Epoch J2000 |- | Constellation | Centaurus |- | Right ascension | 14h 39m 36.2s |- | Declination | -60° 50′ 8.2″ |- | Apparent magnitude (V) | 0.01
|- ! style="background-color: #FFFFC0;" colspan="2" | Spectral Characteristics |- style="vertical-align: top;" | Spectral type | G2 V |- style="vertical-align: top;" | U-B color index | 0.24 |- style="vertical-align: top;" | B-V color index | 0.65 |- style="vertical-align: top;" | Variable type | N/A
|-
! style="background-color: #FFFFC0;" colspan="2" | Astrometry
|- ! style="background-color: #FFFFC0;" colspan="2" | Physical Characteristics |- |style="vertical-align: baseline;" | Mass | 1.10/0.91 M☉ |- |style="vertical-align: baseline;" | Radius | 1.23/0.87 R☉ |- |style="vertical-align: baseline;" | Luminosity | 1.57/0.51 L☉ |- |style="vertical-align: baseline;" | Temperature | 5,800/5,300 K |- |style="vertical-align: baseline;" | Metallicity | 130-230% Sun |- |style="vertical-align: baseline;" | Rotation | ? |- |style="vertical-align: baseline;" | Age | 5-6 × 109 years
|- ! style="background-color: #FFFFC0;" colspan="2" | Visual binary orbit |- style="vertical-align: top;" | Companion | Alpha Centauri B |- style="vertical-align: top;" | Period (P) | 79.92 years |- style="vertical-align: top;" | Semimajor axis (a) | 17.515" |- style="vertical-align: top;" | Eccentricity (e) | 0.516 |- style="vertical-align: top;" | Inclination (i) | 79.24° |- style="vertical-align: top;" | Node (Ω) | 204.87° (ascending)° |- style="vertical-align: top;" | Periastron epoch (T) | 1955.56
|- ! style="background-color: #FFFFC0;" colspan="2" | Other designations |-
| colspan="2" |
|} This table is composed of the following sub-templates:
- {{Starbox begin}}
- {{Starbox image}}
- {{Starbox observe}}
- {{Starbox character}}
- {{Starbox astrometry}}
- {{Starbox visbin}}
- {{Starbox detail}}
- {{Starbox catalog}}
- {{Starbox end}}
Short star template
{{{name}}}
Radial velocity (Rv) | 21.6 km/s |
Proper motion (μ) | RA: -3678.19 mas/yr Dec.: +481.84 mas/yr |
Parallax (π) | 747.23 ± 1.17 mas |
Distance | 4.38 ly (1.33 pc) |
Absolute magnitude (MV) | 4.40 |
Observation data Equinox 2000 |
|
---|---|
Constellation | Centaurus |
Right ascension | 14h 39m 36.5s |
Declination | -62° 50' 2.72" |
Apparent magnitude (V) | 0.01 |
Distance | 4.38 ly (1.33 pc) |
Spectral type | G2 V |
Other designations | |
α1 Cen, HD 128620, CP-60°5483 A, HR 5459, HIP 71683
|
- {{starbox short}}
This template is for stubby star articles, and should be replaced with the full template when the article is expanded.
Footers
- Template:ConstellationsListedByPtolemy - Ptolemy's constellations
- Template:ConstellationList - Modern constellations
- Template:ConstellationsRoyerAltered - Constellations altered by Augustin Royer in 1679
Extrasolar planets
Image:TrES-1.jpg
TrES-1 |
||
Orbital elements | ||
---|---|---|
Semi-major axis | (a) | 0.0393 (± 0.0007) AU |
Eccentricity | (e) | 0.135 (± 0.096) |
Orbital period | (P) | 3.030065 (± 0.000008) d |
Inclination | (i) | 88.2 (± 1)° |
Longitude of periastron |
(ω) | ?° |
Time of periastron | (τ) | 2,453,186.8060 (± 0.002) JD |
Physical characteristics | ||
Mass | 0.61 (± 0.06) MJ | |
Radius | 1.08 RJ | |
Density | ? kg/m³ | |
Temperature | 1,060 (± 50) K | |
Discovery | ||
Discovery date | 2004 | |
Detection method(s) | ||
Discoverer(s) | Alonso et al. |
Supernovae
1987A supernova remnant near the center |
||
Observation data (Epoch J2000.0) |
||
---|---|---|
Supernova type | IIp (unusual) | |
Remnant type | unknown | |
Host Galaxy | Large Magellanic Cloud (LMC) | |
Constellation | Dorado | |
Right ascension | 05h 35m 49.942s (1950) | |
Declination | −69° 17′ 57.60″ (1950) | |
Galactic coordinates |
unknown | |
Discovery Date | 24 February 1987 (23:00 UTC) [8] | |
Peak magnitude (V) | +3 | |
Physical characteristics | ||
Progenitor | Sanduleak −69° 202 a | |
Progenitor type | B3 supergiant | |
Colour (B-V) | +0.085 | |
Notable features | The closest recorded sn. since invention of telescope |
Template: {{Supernova }}
This is a table template that should be used for supernovae. It automatically assigns the article to Category:Supernovae.
Star Clusters
Open cluster | List of open clusters |
---|---|
Observation data (Epoch J2000.0) |
|
Class | VII |
Constellation | |
Right ascension | 18h 36m 18s |
Declination | −23° 53′ 58″ |
Distance | 10.4 kly () |
Apparent magnitude (V) | 5.1 |
Apparent dimensions (V) | 32.0″ |
Physical characteristics | |
Mass | (105 to 106 M☉) |
Radius | |
VHB | 14.2 |
Estimated age | |
Notable features | |
Other designations | Messier 22 |
Template: {{Cluster}}
Sample table for M22. Please modify and improve as needed.
The template is for open and globular clusters.
Galaxies
{{subst:Galaxy | name = Spiral Galaxy M109 | image = Image:Messierobject109.jpg CCD image of M109 | epoch = J2000.0 | type = SB(s)bc | ra = 11h 57.6m 36.0s | dec = +53° 23' 28" | z = +0.003496 | dist_ly = 41 million ly | appmag_v = +9.8 | size_v = 7.6' × 4.9' | constellation name = Ursa Major | radius_ly = 65,000 ly | absmag_v = 13.4 | notes = Possible Milky Way-twin,
Bar at the center | names = NGC 3992, UGC 6937 }}
Template: {{Galaxy}}
This example table should be edited and used for galaxies.
Notes: Please see List of galaxies to find galaxies that do not yet have infoboxes/factsheets.
Please categorise your galaxy in a subcategory of Category:Galaxies
Galaxy cluster
Galaxy groups and clusters |
List of galaxy groups and clusters |
---|---|
Image:Stephan'sQuintet.jpg
Stephan's Quintet, with NGC 7319 (bottom right), |
|
Observation data (Epoch ) |
|
Constellation(s): | Pegasus |
Right ascension | |
Declination | |
Number of galaxies: | 5 |
Brightest member: | |
Other designations | |
|
Template: {{Galaxy cluster}}
This example table should be edited and used for galaxy groups, clusters, clouds, and superclusters.
Types
- Compact galaxy...: in a small setting (possibly colliding)
- Loose galaxy...: separated (sometimes in several constellations)
Nebulae
Planetary Nebulae
Planetary nebula | Lists of nebulae |
---|---|
Observation data (Epoch J2000.0) |
|
Right ascension | 19h 59.6m |
Declination | +22° 43′ |
Distance | 1,250 ly |
Apparent magnitude (V) | +7.4 |
Apparent dimensions (V) | 8.0 × 5.7 arcmins |
Constellation | Vulpecula |
Physical characteristics | |
Radius | - |
Absolute magnitude (V) | - |
Notable features | - |
Other designations | NGC 6853, M27 |
Template: {{Planetary nebula}}
This example should be copied and used for all planetary nebulae. See List of planetary nebulae for articles on planetary nebulae. Please place new planetary nebulae on this list, and categorize in Category:Planetary nebulae, the category of its constellation, and the category of its catalog (ex:Category:Messier objects).
Diffuse Nebulae
Diffuse nebula | Lists of nebulae |
---|---|
Observation data (Epoch J2000.0) |
|
Type | - |
Right ascension | 05h 32m 49s |
Declination | -05° 25′ |
Distance | 1,600 ly |
Apparent magnitude (V) | +4.0 |
Apparent dimensions (V) | 85 × 60 arcmins |
Constellation | Orion |
Physical characteristics | |
Radius | - |
Absolute magnitude (V) | - |
Notable features | - |
Other designations | NGC 1976, M42 |
edit |
Template: {{Diffuse nebula}}
This example should be copied and used for all diffuse nebulae. See List of diffuse nebulae for articles on ddiffuse nebulae. Please place new diffuse nebulae on this list, and categorize in Category:Diffuse nebulae, the category of its constellation, and the category of its catalog (ex:Category:Messier objects).
Dark Nebulae
Dark nebula | Lists of nebulae |
---|---|
Observation data (Epoch J2000.0) |
|
Type | Dark |
Right ascension | 05h 40m 59.0s |
Declination | -02° 27′ 30.0" |
Distance | 1,500 ly |
Apparent magnitude (V) | - |
Apparent dimensions (V) | 8 × 6 arcmins |
Constellation | Orion |
Physical characteristics | |
Radius | - |
Absolute magnitude (V) | - |
Notable features | - |
Other designations | IC 434, Barnard 33 |
edit |
Template: {{Dark nebula}}
Currently (2005) there are only two dark nebulae on Wikipedia, see List of dark nebulae.
Useful links
- List of asteroids
- List of galaxies
- List of Messier objects
- List of NGC objects
- List of planetary nebulae
- To view changes made in the last 24 hours to astronomy pages on Wikipedia click here
Participants
In alphabetical order:
- AMcWhatever I can do to help...
- Ardric47 I am by now probably a de facto minor participant, having done some lists and things with sourcing.
- Awolf002. Count me in! Up to now I just worked on biographies (crater eponyms) and this project looks good.
- Eric Forste (talk) I feel as if this is the first wikiproject I've joined, so I'm gonna sign my name to it. All y'all that got this thing started up could go ahead and sign yours above mine (or we could just follow the alphabetical convention). Right now I'm working in a sandbox on adding the infobox to Proteus and then I'll be working on Nereid if no one beats me to it.
- Eurocommuter Contributing to trans-Neptunian-related articles, especially with diagrams and solid references (but offering arXiv preprints).
- Hurricane Devon ( Talk ) I'll do galaxies and exoplanets.
- JamesHoadley (talk) It seems I'm helping out at the moment, so I may as well put my name down. Mostly I work on solar system planets and moons, deep sky stuff (nebulae, galaxies) and spacecraft (not in this topic).
- Jyril. I've been creating asteroid and extrasolar planet articles for a long time. (Why I haven't signed earlier?)
- Nicholas. I'm here too.
- RJH (talk). Finished up the lunar craters; now working on propagating starbox template and some of the crater eponym bios.
- shaggy Mostly working on cleaning up articles on trans-Neptunian objects and centaurs. Also, creating articles for notable TNOs and centaurs.
- siafu Working on maintaining the pages on the planets recently.
- Uber nemo (talk). I'll sign my name alphabetically. I am currently working on galaxy stubs and infoboxless articles.
- Urhixidur (talk). I've been banging away at asteroids, mostly.
Pages needing attention
Astronomy
- Portals
- WikiProjects
- Categories covered
- Stubs
- Category:Astronomer stubs
- Category:Astronomy stubs (and all children)
- Cleanup needed
- 85 - Accelerating Universe, Alcubierre drive, Alfonso X of Castile, Astrology and astronomy, Big Freeze, Brainship, C. Donald Shane telescope, Camp Neringa, Chandrasekhar limit, Chang'e program, Chinese star maps, Comet, Comoving distance, Coriolis field, Cosmology, Cytherean, Devico, Durchmusterung, Epoch (astronomy), Exploration of the Moon, Fast solar sailing, Fluorescent lamp, Frame of reference, Geosynchronous satellite, Gravitational interaction of antimatter, Gravitational radiation, Gravitomagnetism, Holy Week, Impact event, Islands in the Sky: Bold New Ideas for Colonizing Space, James McCanney, Kerr metric, Klendathu, Koyo Kawanishi, LV-1201, Linearised Einstein field equations, Liquid rocket propellants, List of hypothetical astronomical objects, Locations in Revelation Space, Lockheed Martin X-33, Low-G condition, Marathon Trilogy, Maxwell's equations in curved spacetime, Meridian circle, Metal-rich, Naked singularity, National Air and Space Museum, Neutrino, Orthomode transducer, Planetary Society, Potential energy, ProSpace, Pronunciation of asteroid names, Przybylski's star, Pulsar, Quintilis, Relative angular momentum, Relaxation time, Research Consortium on Nearby Stars, Rick Tumlinson, Ring singularity, Riparian calendar, SETI, SIMP, Solstice, Solutions of the Einstein field equations, Solving the geodesic equations, Space Nursing Society, Space elevator economics, Space law, Space mathematics, Spacebus, Specific relative angular momentum, Superforce, TAUVEX, Thebe Medupe, Tier One, Timanous, Transverse Doppler effect, Vic Viper, Vitim event, Wall Street Crash of 1929, William Simms, YMCA Camp Manito-wish
- Expansion needed
- 36 - 4U 0142+61, Celestial mechanics, Einstein Cross, ExoMars, FORTE (satellite), Fabry-Pérot interferometer, Friedmann equations, Galaxy morphological classification, HVC 127-41-330, Human timescales, IC 2944, L5 Society, Linda Ham, List of scientific journals in astronomy, List of summer camps, Low surface brightness galaxy, Lyman-alpha blob, Lyman-alpha forest, M-theory, Messier 10, NGC 1156, NGC 56, Nova remnant, OGLE-TR-122b, Petr Pravec, Planetary Report, Q star, Rome Observatory, San Diego State University College of Sciences, Scalar-tensor-vector gravity, Stellar cartography, Tensor-vector-scalar gravity, The Indestructibles, Tier 1b, VIRGOHI21, Willman 1
- Expert attention needed
- 0 -
- Wikification needed
- Neutrality in question
- 14 - Anti-gravity, Black July, Exopolitics, Extraterrestrial real estate, Gravity shielding, History of astronomy, Hypatia of Alexandria, Medomak Camp, Plasma cosmology, Quasi-steady state cosmology, Space Foundation, Spatial Doppler effect, Tired light, Unidentified flying object
- To be merged or split
- 49 - Alcubierre drive, Astrophysical plasma, Brunnis, Classical planets, Cosmic dust, Eternium, Fecund universes, Geometric precession, Geostationary orbit, Geosynchronous orbit, Gravitational slingshot, Gregorian calendar, Habitable zone, Holy Family, Hubble sequence, Langmuir waves, Leapling, Lightning, Lode Star, Lunar calendar, Lunar year, Magnetohydrodynamic drive, Messier 102, Monopropellant rocket, NASA, Naked eye planets, Neo-Pythagoreanism, Omega point, Omega point (Tipler), Optus fleet of satellites, Paleocontact theory, Parawing, Particle horizon, Plane of reference, Polar jet, Proleptic Gregorian calendar, Pulsar, Pythagoreanism, Reference plane, Rogallo wing, Santa Susana Field Laboratory, Schwarzschild metric, Silvery River, Small-angle formula, Spectral class, Spherical astronomy, Spindle Galaxy in Draco, Structure formation, The Cluster
[[Category:WikiProject Astronomy|Objects, astronomical]] [[fr:Wikipédia:Projet/Objets de l'Univers]] [[ja:Wikipedia:ウィキプロジェクト 天体]] [[ru:Википедия:Проект:Астрономические Объекты]]