| 词条 | UGC 8335 |
| 释义 |
| name = UGC 8335 | image = Hubble Interacting Galaxy UGC 8335 (2008-04-24).jpg | image_size = 280px | caption = An image of UGC 8335 taken in 2002 by the Hubble Space Telescope | epoch = J2000 | constellation_name = Ursa Major | ra = {{RA|13|15|32.8}}[1] | dec = {{DEC|+62|07|37}}[1] | z = 0.030831 ± 0.000097[2] | h_radial_v = 9243 ± 29 km/s [2] | gal_v = 9364 ± 29 km/s [2] | dist_pc = {{convert|128.3|+/-|9.0|Mpc|Mly|abbr=on|lk=on}} {{hub|0.73}}[1] | group_cluster = | type = | mass = | mass_light_ratio = | size = {{convert|65.05|×|26.67|kpc|kly|abbr=on|lk=on}} [1] | stars = | appmag_v = 14.4 ± 0.4 [2] | appmag_b = | absmag_v = -21.19 ± 0.64 [2] | size_v = 1.70′ × 0.70′[3] | notes = | names = Arp 238, VV 250, KPG 369, PGC 46133 | references = }}UGC 8335 (Arp 238) is a pair of strongly interacting spiral galaxies. They have been distorted by extreme tidal forces, creating prominent tidal tails and a bridge of gas and stars between the galaxies.[4][5] UGC 8335 is about 400 million light-years from Earth, in the constellation Ursa Major. It is the 238th object in Halton Arp's Atlas of Peculiar Galaxies.[4] Supernova 2012On April 25, 2012, Supernova 2012 by was discovered in UGC 8335 by Doug Rich.[6][7] At the time of discovery, the supernova had a magnitude of 17.6.[8] A peak magnitude measurement of 17.3 was recorded two days later, on April 27.[6] SN 2012by was classified as a type II supernova by Tomasella et al. at the Astronomical Observatory of Padova. The research group also found that its spectrum was similar to that of SN 1996as.[8] References1. ^1 2 3 {{cite simbad | title=UGC 8335 | access-date=2015-12-10}} 2. ^1 2 3 4 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for UGC 8335 | url=https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=ugc+8335&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES | accessdate=2015-12-10}} 3. ^Nilson, P. (1973) Uppsala General Catalogue of Galaxies, Acta Universitatis Upsalienis, Nova Regiae Societatis Upsaliensis, Series V: A Vol. 1 4. ^1 {{Cite web|title = HubbleSite - NewsCenter - Cosmic Collisions Galore! (04/24/2008) - Release Images|url = http://hubblesite.org/newscenter/archive/releases/2008/16/image/ah/|website = hubblesite.org|accessdate = 2015-12-10}} 5. ^{{Cite web|title = Astronomy Picture of the Day: 4/19/13 - UGC 8335|url = http://futurism.com/astronomy-picture-of-the-day-41913-ugc-8335/|website = Futurism|publisher = |accessdate = 2015-12-10|language = en-US}} 6. ^1 {{Cite web|title = Bright Supernovae - 2012.|url = http://www.rochesterastronomy.org/sn2012/index.html#2012by|website = www.rochesterastronomy.org|accessdate = 2015-12-10}} 7. ^{{Cite web|title = List of Supernovae|url = http://www.cbat.eps.harvard.edu/lists/Supernovae.html|website = www.cbat.eps.harvard.edu|accessdate = 2015-12-10}} 8. ^1 {{Cite web|url = https://www.fcaglp.unlp.edu.ar/pipermail/iauc/2012-April/002731.html|title = [IAUC] CBET 3095: 20120429 : SUPERNOVA 2012by IN UGC 8335 = PSN J13152890+6207478|date = |accessdate = 2015-12-10|website = Electronic Telegram No. 3095|publisher = Central Bureau for Astronomical Telegrams|last = Green|first = Daniel|publication-date = 2012-04-29|deadurl = yes|archiveurl = https://web.archive.org/web/20151224001438/https://www.fcaglp.unlp.edu.ar/pipermail/iauc/2012-April/002731.html|archivedate = 2015-12-24|df = }} External links
| Arp = 238 | UGC = 8335 | PGC = 46133 | KPG = 369 | VV = 250 }} 6 : Spiral galaxies|Interacting galaxies|Luminous infrared galaxies|Principal Galaxies Catalogue objects|Arp objects|UGC objects |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。