NGC 1514
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| NGC 1514 | |
 |
|
| Observation data (Epoch J2000) |
|
|---|---|
| Right ascension | 04h 09m 16.984s[1] |
| Declination | +30° 46′ 33.47″[1] |
| Distance | ~600[a] |
| Apparent magnitude (V) | 9.43[1] |
| Apparent dimensions (V) | 2′.2 |
| Constellation | Taurus |
| Physical characteristics | |
| See also: Planetary nebula, Lists of nebulae | |
NGC 1514 was discovered by William Herschel on November 13th 1790 describing it "A most singular phoenomenoa" and forcing him to rethink his ideas on the construction of the heavens. Up until this point Herschel was convinced that all nebulae consisted of masses of stars too remote to resolve, but now here was a single star "surrounded with a faintly luminous atmosphere."[2] He went on to conclude "Our judgement I may venture to say, will be, that the nebulosity about the star is not of a starry nature".
It has since been conjectured that the nebula in fact envelops a tightly orbiting double star with a period of up to 10 days. Gas is presumably expanding away from the larger star of the pair.[3]
[edit] Notes
[edit] References
- Herschel, William (February 10, 1791), “On Nebulous Stars, Properly So Called.”, Philosophical Transactions of the Royal Society of London, Volume 81, pp. 81: 71-88, <http://adsabs.harvard.edu/abs/1791RSPT...81...71H>
- Hoskin, Michael A. (1963), “William Herschel and the Construction of the Heavens”, Oldbourne History of Science Library (London: Oldbourne), <http://adsabs.harvard.edu/abs/1963whch.book.....H>
- Muthu, C. & Anandarao, B. G. (December 2003), “A Spatiokinematic Study of the Planetary Nebula NGC 1514”, The Astronomical Journal 126 (6): 2963-2970, <http://adsabs.harvard.edu/abs/2003AJ....126.2963M>
- SIMBAD (2007), Results for NGC 1514, SIMBAD, Centre de Données Astronomiques de Strasbourg, <http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=NGC+1514>. Retrieved on September 14, 2007
[edit] External links
- Basic data on NGC 1514
- Discussion on the dynamics of the NGC 1514 system
- Herschel's theory
- High resolved image of NGC 1514, taken with a semiprofessional Amateur-telescope
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