02471+3744 A 1821 AB
02h 47m 08.57s +37° 43' 44.7" P.A. 166.00 sep 5.3 mag 8.53,14.70 Sp B9 dist. 549.45 pc (1792.31 l.y.)
Coord 2000 |
02471+3744 |
|
Discov num |
A 1821 |
|
Comp |
AB |
|
Coord arcsec 2000 |
02 47 08.57 +37 43 44.7 |
|
Date first |
1908 |
|
Date last |
2016 |
|
Obs |
5 |
|
Pa first |
164 |
|
Pa last |
165.6 |
|
P.A. Now (θ) |
165.6° |
|
Sep first |
5.0 |
|
Sep last |
5.27 |
|
Sep. Now (ρ) |
5.27" |
|
Mag pri |
8.53 |
|
Mag sec |
14.70 |
|
delta mag (ΔM) |
6.17 |
|
Spectral class |
B9 (blue-white) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
|
|
Pri motion dec |
-002 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
02471+3744 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
55874 |
02 47 09 +37 43 45 |
A 1821 AB |
2016 |
5 |
166 |
5.3 |
8.53 |
14.70 |
6.17 |
|
<=== |
Show |
|
55874 |
02 47 09 +37 43 45 |
A 1821 AC |
2014 |
8 |
44 |
10.6 |
8.53 |
13.20 |
4.67 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Perseus |
|
SAO |
55874 |
|
HIP |
13001 |
|
Tycho2 |
2845-02131-1 |
|
Gaia DR2 |
141798280855030144 |
|
HD |
17239 |
|
ADS |
2116 |
|
BD |
BD+37 632 |
|
Distance |
549.45 |
|
Distance ly |
1792.31 |
|