20401+3044 TDT 2457 Aa,Ab (HD 334900)
20h 40m 07.24s +30° 44' 28.2" P.A. 139.00 sep 0.9 mag 11.27,11.48 Sp A0
| Coord 2000 |
20401+3044 |
|
Discov num |
TDT2457 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
20 40 07.24 +30 44 28.2 |
|
| Date first |
1991 |
|
Date last |
2016 |
|
Obs |
3 |
|
| Pa first |
135 |
|
Pa last |
138.5 |
|
P.A. Now (θ) |
138.5° |
|
| Sep first |
1.0 |
|
Sep last |
0.888 |
|
Sep. Now (ρ) |
0.888" |
|
| Mag pri |
11.27 |
|
Mag sec |
11.48 |
|
delta mag (ΔM) |
0.21 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-005 |
|
| Notes |
|
|
Nature of this double is uncertain.
20401+3044 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 334900 |
|
20 40 07 +30 44 28 |
TDT 2457 Aa,Ab |
2016 |
3 |
139 |
0.9 |
11.27 |
11.48 |
0.21 |
|
<=== |
| Show |
|
|
20 40 07 +30 44 28 |
ROE 15 AB |
2014 |
8 |
249 |
7.6 |
11.27 |
13.30 |
2.03 |
|
|
| Show |
|
|
20 40 07 +30 44 28 |
ROE 15 AC |
2014 |
9 |
257 |
30.4 |
11.27 |
11.54 |
0.27 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 334900 |
|
Constellation |
Cygnus |
|
Tycho2 |
2686-00543-1 |
|
Gaia DR2 |
1862380287224808320 |
|
| HD |
334900 |
|
