Datei:NGC 4639.png
Originaldatei (4.074 × 3.876 Pixel, Dateigröße: 29,19 MB, MIME-Typ: image/png)
| Beschreibung |
Surprisingly, only a WFPC2 version of this galaxy is <a href="http://hubblesite.org/newscenter/archive/releases/1996/21/image/b/" rel="nofollow">featured</a> on the Hubble sites. This is a combination of WFC3 and ACS data. It's not quite as deep as the WFPC2 observations but it's still a lovely set of data. Red: hst_11570_23_wfc3_uvis_f814w_sci Green: hst_11570_23_wfc3_uvis_f350lp_sci Blue: HST_10802_86_ACS_WFC_F555W_sci Various other data was (were?) used to fill in the chip gap. I did something strange this time, too. I rotated the diffraction spikes for the blue channel so that they would match with the other two channels. There were only three stars this time so it wasn't a big deal to do. I don't know about other people but one of the more obscure things which please me are the subtle, rainbow-like spectrums visible in some diffraction spikes. North is NOT up. It is 58° clockwise from up. |
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| Datum | |||
| Quelle | Flickr: NGC 4639 | ||
| Urheber | Judy Schmidt | ||
| Genehmigung (Weiternutzung dieser Datei) |
  Diese Datei ist unter der Creative-Commons-Lizenz „Namensnennung 2.0 generisch“ (US-amerikanisch) lizenziert.
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| Version vom | Vorschaubild | Maße | Benutzer | Kommentar | |
|---|---|---|---|---|---|
| aktuell | 20:55, 18. Feb. 2014 | | 4.074 × 3.876 (29,19 MB) | wikimediacommons>Flickr upload bot | Uploaded from http://flickr.com/photo/54209675@N00/12137819615 using Flickr upload bot |
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