About IC 1821 NED02
IC 1821 NED02 is a common galaxy. It sits in the constellation Ari.
A galaxy: a gravitationally bound city of stars, gas and dark matter, turning so slowly that a single rotation takes hundreds of millions of years.
Common galaxy 17 EP
IC 1821 NED02
RA 39.1113° · Dec 13.7789° · openngc
Score breakdown
· 2 badgesCommon 22 pts → Uncommon
- Galaxy +14
- On the zodiac +3
Total score 17
5 more points to reach Uncommon.
Badges
- Galaxy · +14
- On the zodiac · +3
Trivia
What it actually is
- What it actually is. A galaxy: a gravitationally bound city of stars, gas and dark matter, turning so slowly that a single rotation takes hundreds of millions of years.
Sense of scale
- Scale. Home to hundreds of billions of stars — a universe unto itself, and every one of those points of light could have planets.
Find it in the sky
- Where to look. You'll find it in the constellation Aries.
- Northern sky. It rides the northern half of the sky — an easier target the further north you are.
- Best time of year. It stands highest in the middle of the night around October — that's when to go looking.
Its true colour
- Its true colour. Its colour is a census: blue where gas is still collapsing into hot young stars, yellow-red in the old, settled core.
How we came to know it
- The Index Catalogue. The IC was the 1895 and 1908 supplement to the NGC — the first catalogue in history to be filled largely with objects found on photographic plates rather than by eye.
Properties
- constellation
- Ari
- dso type
- G
- name
- IC 1821 NED02
- size arcmin
- 0.26
How to see it
Look for IC 1821 NED02 in the constellation Ari.
Like any astronomical target, IC 1821 NED02 is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
Why IC 1821 NED02 is a common galaxy
IC 1821 NED02 scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.
That score comes from 2 science badges — Galaxy and On the zodiac — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.