http://legacysurvey.org//viewer/?ra=258.0894&dec=-38.4509&layer=decaps&zoom=11&lslga
Hello,
could someone tell me the name of this nebula? I couldn’t find it in Messier or NGC catalogs. Thanks!
1 Like
Hmm, I did a "look up in Simbad’ query and maybe it’s this:
http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%405447100&Name=SDC%20G348.273%2B0.495&submit=submit
“Dark Cloud (nebula)” sounds appropriate…
I did lookups in Simbad too and got a few different DNe results, for example, SDC G348.233+0.542, SDC G348.244+0.562, SDC G348.273+0.495… and they all seem to be assigning to this one, so that must be it, the “Dark Cloud”. Thanks @dstn !
Surprisingly, albeit its relatively large size, it does not seem to be listed in Dunlop, Messier, or even NGC catalogues.
If you zoom out in Spitzer you got this ( see images below). 
Ine 
1 Like
I usually look for the object in SIMBAD with the most citations. The Sharpless catalog (short SH), the catalog by Gum in 1955, the RCW catalog and the NGC catalog are a good way to start for bright emission nebulae. This is Sharpless 2-3, also called GUM 58 or RCW 120 and I remember this from the Milky Way Project. Spitzer Space Telescope image is below (from the MWP Subject 2993004).
I especially remember this bubble because some researchers see this as the perfect bubble and it is a prototype of an infrared bubble.
2 Likes
Yeah, I looked SIMBAD too but it brought up way too many hits. Oh, I wasn’t even aware of those catalogs, thank you @Melina_Thevenot ! I’ll have to explore them in more detail. 
1 Like
Can someone share the settings required to view nebula such as this please?
Hi,
There’s a slightly more advanced version of the viewer at https://www.legacysurvey.org/viewer
including, when you click on the map, a “Look up in Simbad” link, which I think is what these folks used.
cheers,
–dustin
Thank you very much Dustin!