02157+2503 COU 79 AB (21 Ari)
02h 15m 42.83s +25° 02' 35.7" P.A. 39.00 sep 0.2 mag 6.40,6.48 Sp F6V dist. 51.07 pc (166.59 l.y.)
| Coord 2000 |
02157+2503 |
|
Discov num |
COU 79 |
|
Comp |
AB |
|
Coord arcsec 2000 |
02 15 42.83 +25 02 35.7 |
|
| Date first |
1965 |
|
Date last |
2014 |
|
Obs |
219 |
|
| Pa first |
50 |
|
Pa last |
39.2 |
|
P.A. Now (θ) |
39.2° |
|
| Sep first |
0.3 |
|
Sep last |
0.195 |
|
Sep. Now (ρ) |
0.195" |
|
| Mag pri |
6.40 |
|
Mag sec |
6.48 |
|
delta mag (ΔM) |
0.08 |
|
Spectral class |
F6V (yellow-white) |
|
| Pri motion ra |
-088 |
|
Sec motion ra |
|
|
| Pri motion dec |
-087 |
|
Sec motion dec |
|
|
| Notes |
N
O
W
(See Notes, Orbital solution, ) |
|
This double is physical.
02157+2503 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
21 Ari |
75238 |
02 15 43 +25 02 36 |
COU 79 AB |
2014 |
219 |
39 |
0.2 |
6.40 |
6.48 |
0.08 |
Y |
<=== |
| Show |
|
|
02 15 49 +24 58 50 |
RAO 635 Ca,Cb |
2019 |
1 |
150 |
0.7 |
12.20 |
13.90 |
1.70 |
|
|
Quadruple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
21 Ari |
|
Constellation |
Aries |
|
SAO |
75238 |
|
HIP |
10535 |
|
| Tycho2 |
1769-01309-1 |
|
HD |
13872 |
|
HR |
657 |
|
GC |
2706 |
|
| BD |
BD+24 329 |
|
Flamsteed |
21 Arietis |
|
Flamsteed name |
21 Ari |
|
FK5 |
1059 |
|
| Distance |
51.07 |
|
Distance ly |
166.59 |
|
