17094-3141 HJ 4921 AB (HD 154871)
17h 09m 23.97s -31° 40' 47.1" P.A. 146.00 sep 8.7 mag 8.89,9.51 Sp A0/1V
| Coord 2000 |
17094-3141 |
|
Discov num |
HJ 4921 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 09 23.97 -31 40 47.1 |
|
| Date first |
1834 |
|
Date last |
2015 |
|
Obs |
17 |
|
| Pa first |
139 |
|
Pa last |
145.9 |
|
P.A. Now (θ) |
145.9° |
|
| Sep first |
4.0 |
|
Sep last |
8.717 |
|
Sep. Now (ρ) |
8.717" |
|
| Mag pri |
8.89 |
|
Mag sec |
9.51 |
|
delta mag (ΔM) |
0.62 |
|
Spectral class |
A0/1V (white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-008 |
|
Sec motion dec |
-010 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.222 (< 0.3, Physical double)
This double is physical.
17094-3141 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
17 09 24 -31 40 47 |
VOU 37 Aa,Ab |
1960 |
3 |
40 |
0.2 |
9.60 |
9.80 |
0.20 |
|
|
| Show |
HD 154871 |
|
17 09 24 -31 40 47 |
HJ 4921 AB |
2015 |
17 |
146 |
8.7 |
8.89 |
9.51 |
0.62 |
|
<=== |
| Show |
|
|
17 09 24 -31 40 47 |
DAW 215 AC |
2015 |
4 |
90 |
20.5 |
8.89 |
13.20 |
4.31 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 154871 |
|
Constellation |
Scorpius |
|
Tycho2 |
7361-00371-1 |
|
Gaia DR2 |
5980208971424555008 |
|
| HD |
154871 |
|
