User talk:Clh288

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[edit] New galaxy articles

I notice that you have created a number of new galaxy articles. While this is good and while most of what you're doing is very nice, I noticed a couple of things that that you could improve in the articles:

  • The "type" in the infoboxes specifies the morphological type or Hubble type of the galaxies. In the NASA/IPAC Extragalactic Database (NED) entries, this is given as a line labeled "classification". For NGC 5398, for example, the type is "SB(rs)dm". If you see "Sy" followed by a number, "LINER", "HII", "Sburst", or similar stuff at the end of the classification entry in NED, ignore it.
  • After writing an article, check to ensure that all the links were created correctly and that footnotes were added to all of the relevant information. (You seem a little prone to typos.)
  • Avoid using any distances to galaxies reported anywhere (including the distances from the Hubble Space Telescope public website and NED) except those distances that are given in scientific journals articles. Most distance measurements are just wildly inaccurate guesses. (Ask me about NGC 4594 and the review of the journal article that I wrote on the galaxy.) It is usually better just to leave the entry blank.
  • One thing that you do very well is add references (although you occasionally miss one or two). Please continue to do so.

It's also good that you are finding public domain images for the astronomy articles in Wikipedia. They can generally be hard to come by. If you have any questions, please contact me. Thank you, Dr. Submillimeter 19:15, 30 March 2007 (UTC)


[edit] More comments on new galaxy articles

I see that you cleaned up most of the new articles that you had created. Thank you. They are looking better.

A few more comments:

  • The apparent magnitude given by the NASA/IPAC Extragalactic Database (NED) is generally only accurate to one decimal place. Therefore, it is only useful to write "11.4" instead of "11.46". (NED writes numbers to too many decimal places.) Also, do not transcribe the "g" after the apparent magnitudes.
  • Please add wikilinks to the constellation page in the infobox. For example, use Virgo instead of just plain Virgo.
  • Also, please add the corresponding category for the constellation (e.g. Category:Virgo constellation).
  • You may want to use Template:PD-Hubble for HST images. It even adds a category to each image page.

The articles are looking better. Keep up the good work. Dr. Submillimeter 18:17, 31 March 2007 (UTC)

[edit] Wave band

When adding non-visible light images to articles, I like to add the wave band information (near-infrared for 2MASS, ultraviolet for GALEX) to the captions. At the very least, it indicates that the objects may not look the same in visible light. (Adding "visible light" to HST images would be OK, too.) I hope you agree with this. Dr. Submillimeter 18:29, 2 April 2007 (UTC)

On this topic, please be alert to images which are composites of different wavelengths. For example, image for NGC 2535 and 2536 was captioned as infrared. While the image does contain infrared, it also contains other wavelengths, for now, I've just labeled it a composite image. Thanks. WilliamKF 20:22, 2 April 2007 (UTC)

[edit] Image request for source link

Thanks for your astro contributions and images. I have a request on these images: please provide the source link from whence the images originated on the newly created image page. Thanks again for your work. WilliamKF 20:19, 2 April 2007 (UTC)

[edit] Hubble type comment

A note on the Hubble type taken from NED:

  • If you see S0-, S00, and S0+ on the NED pages please add the trailing +, -, or 0 as a superscript (i.e. S0<sup>-</sup>). NED does not do this because of limitations with that website.

Thanks. WilliamKF 23:54, 2 April 2007 (UTC)

[edit] References for websites

In general, do not format the references like the references for the NASA/IPAC Extragalactic Database (NED). The website references should generally give the title of the actual webpage. See the edits I made at NGC 1409 and NGC 1410, for example. The references for the NED website are different only because the webpage is a search engine. Thank you, Dr. Submillimeter 10:53, 8 April 2007 (UTC)

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