21255+0203 STT 439 AB,C (HD 203993)
21h 25m 30.78s +02° 02' 35.0" P.A. 222.00 sep 14.6 mag 7.53,11.33 Sp A1III dist. 296.74 pc (967.97 l.y.)
| Coord 2000 |
21255+0203 |
|
Discov num |
STT 439 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
21 25 30.78 +02 02 35.0 |
|
| Date first |
1830 |
|
Date last |
2018 |
|
Obs |
22 |
|
| Pa first |
220 |
|
Pa last |
221.9 |
|
P.A. Now (θ) |
221.9° |
|
| Sep first |
12.0 |
|
Sep last |
14.63 |
|
Sep. Now (ρ) |
14.63" |
|
| Mag pri |
7.53 |
|
Mag sec |
11.33 |
|
delta mag (ΔM) |
3.8 |
|
Spectral class |
A1III (white) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
+003 |
|
| Pri motion dec |
-019 |
|
Sec motion dec |
-015 |
|
| Notes |
N
(See Notes) |
|
rPM=0.279 (< 0.3, Physical double)
This double is physical.
21255+0203 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
126787 |
21 25 31 +02 02 35 |
A 2289 AB |
2017 |
18 |
334 |
0.1 |
7.82 |
9.27 |
1.45 |
Y |
|
| Show |
HD 203993 |
126787 |
21 25 31 +02 02 35 |
STT 439 AB,C |
2018 |
22 |
222 |
14.6 |
7.53 |
11.33 |
3.80 |
|
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 203993 |
|
Constellation |
Aquarius |
|
SAO |
126787 |
|
HIP |
105792 |
|
| Tycho2 |
0533-01002-1 |
|
Gaia DR2 |
2691752864506307456 |
|
HD |
203993 |
|
BD |
BD+01 4477 |
|
| Distance |
296.74 |
|
Distance ly |
967.97 |
|
