21004+3411 BU 1329 AB
21h 00m 26.00s +34° 10' 42.4" P.A. 39.00 sep 0.3 mag 8.90,9.10 Sp A2
Coord 2000 |
21004+3411 |
|
Discov num |
BU 1329 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 00 26.00 +34 10 42.4 |
|
Date first |
1902 |
|
Date last |
2012 |
|
Obs |
26 |
|
Pa first |
59 |
|
Pa last |
38.7 |
|
P.A. Now (θ) |
38.7° |
|
Sep first |
0.3 |
|
Sep last |
0.321 |
|
Sep. Now (ρ) |
0.321" |
|
Mag pri |
8.90 |
|
Mag sec |
9.10 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
A2 (white) |
|
Pri motion ra |
+031 |
|
Sec motion ra |
|
|
Pri motion dec |
-024 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
21004+3411 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
70781 |
21 00 26 +34 10 42 |
BU 1329 AB |
2012 |
26 |
39 |
0.3 |
8.90 |
9.10 |
0.20 |
|
<=== |
Show |
HD 200121 |
70781 |
21 00 26 +34 10 42 |
BU 1329 AB,C |
2015 |
16 |
30 |
6.8 |
8.84 |
10.53 |
1.69 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
SAO |
70781 |
|
Tycho2 |
2709-00544-1 |
|
Gaia DR2 |
1866412333803837312 |
|
HD |
200121 |
|