| 词条 | NGC 2301 |
| 释义 |
| name = NGC 2301 | image =NGC2301 - SDSS DR14 (panorama).png | caption =SDSS | credit = | type = Open Cluster | epoch = J2000 | constellation = Monoceros | ra = {{RA|06|51|45}}[1] | dec = {{DEC|+00|27|36}}[1] | dist_ly = 2,840 ly | dist_pc = 872 pc[2] | appmag_v = 6.0 [1] | size_v = 12' | mass_msol = | age = 165 millions years | notes = | names = }}NGC 2301 is an open cluster in the constellation Monoceros. It was discovered by William Herschel in 1786. It is visible through 7x50 binoculars and it is considered the best open cluster for small telescopes in the constellation.[3] It is located 5° WNW of delta Monocerotis and 2° SSE of 18 Monocerotis. The brightest star of the cluster is an orange G8 subgiant star of 8.0 magnitude, but it is possible that it is a foreground star. The cluster contains also blue giants. The brightest main sequence star is a B9 star with magnitude 9.1.[4] References1. ^1 2 {{cite web| title=SIMBAD Astronomical Database| work=Results for NGC 2301| url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+2301&submit=SIMBAD+search| accessdate=2015-06-19}} {{star-cluster-stub}}2. ^WEBDA: NGC 2301 3. ^[https://books.google.gr/books?id=Nyh9fAC_tpIC&pg=PA55 Steve O'Meara's Herschel 400 Observing Guide] p. 55 4. ^{{cite book|author=Craig Crossen|author2=Gerald Rhemann|title=Sky Vistas: Astronomy for Binoculars and Richest-Field Telescopes|date=2012|publisher=Springer Science & Business Media|isbn=9783709106266|page=110|url=https://books.google.gr/books?id=3vELBwAAQBAJ&pg=PA110|accessdate=30 October 2015}} 3 : NGC objects|Monoceros (constellation)|Open clusters |
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