20581+4043 COU 2430 AB
20h 58m 04.08s +40° 43' 05.8" P.A. 254.00 sep 0.4 mag 9.80,10.40 Sp A2
| Coord 2000 |
20581+4043 |
|
Discov num |
COU2430 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 58 04.08 +40 43 05.8 |
|
| Date first |
1986 |
|
Date last |
2014 |
|
Obs |
5 |
|
| Pa first |
252 |
|
Pa last |
253.6 |
|
P.A. Now (θ) |
253.6° |
|
| Sep first |
0.4 |
|
Sep last |
0.416 |
|
Sep. Now (ρ) |
0.416" |
|
| Mag pri |
9.80 |
|
Mag sec |
10.40 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20581+4043 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 58 04 +40 43 06 |
COU 2430 AB |
2014 |
5 |
254 |
0.4 |
9.80 |
10.40 |
0.60 |
|
<=== |
| Show |
|
|
20 58 04 +40 43 06 |
COU 2430 AB,C |
2012 |
2 |
176 |
3.0 |
9.80 |
14.80 |
5.00 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3171-00919-1 |
|
