20489-2037 HJ 2998 AB (BM Cap)
20h 48m 55.66s -20° 37' 08.1" P.A. 140.00 sep 6.0 mag 9.72,9.96 Sp K2III dist. 77.88 pc (254.04 l.y.)
| Coord 2000 |
20489-2037 |
|
Discov num |
HJ 2998 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 48 55.66 -20 37 08.1 |
|
| Date first |
1830 |
|
Date last |
2019 |
|
Obs |
36 |
|
| Pa first |
145 |
|
Pa last |
139.6 |
|
P.A. Now (θ) |
139.6° |
|
| Sep first |
5.0 |
|
Sep last |
5.957 |
|
Sep. Now (ρ) |
5.957" |
|
| Mag pri |
9.72 |
|
Mag sec |
9.96 |
|
delta mag (ΔM) |
0.24 |
|
Spectral class |
K2III (yellow-orange) |
|
| Pri motion ra |
+064 |
|
Sec motion ra |
+081 |
|
| Pri motion dec |
-015 |
|
Sec motion dec |
-031 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.269 (< 0.3, Physical double)
This double is physical.
20489-2037 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
BM Cap |
189726 |
20 48 56 -20 37 08 |
HJ 2998 AB |
2019 |
36 |
140 |
6.0 |
9.72 |
9.96 |
0.24 |
|
<=== |
| Show |
|
189726 |
20 48 56 -20 37 08 |
BU 1494 AC |
2015 |
10 |
135 |
92.5 |
9.72 |
11.52 |
1.80 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
BM Cap |
|
Constellation |
Capricornus |
|
SAO |
189726 |
|
HIP |
102723 |
|
| Tycho2 |
6352-01079-1 |
|
Gaia DR2 |
6857155947968218112 |
|
HD |
198141 |
|
GC |
29007 |
|
| BD |
BD-21 5839 |
|
Distance |
77.88 |
|
Distance ly |
254.04 |
|
