18090-3617 SHY 738 AB (HD 165728)
18h 09m 01.96s -36° 17' 05.2" P.A. 254.00 sep 999.9 mag 8.56,9.01 Sp G2V+G5V dist. 88.34 pc (288.17 l.y.)
Coord 2000 |
18090-3617 |
|
Discov num |
SHY 738 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 09 01.96 -36 17 05.2 |
|
Date first |
1991 |
|
Date last |
1998 |
|
Obs |
4 |
|
Pa first |
253 |
|
Pa last |
253.5 |
|
P.A. Now (θ) |
253.5° |
|
Sep first |
999.9 |
|
Sep last |
4915.38 |
|
Sep. Now (ρ) |
4915.38" |
|
Mag pri |
8.56 |
|
Mag sec |
9.01 |
|
delta mag (ΔM) |
0.45 |
|
Spectral class |
G2V+G5V (yellow/yellow) |
|
Pri motion ra |
-018 |
|
Sec motion ra |
-019 |
|
Pri motion dec |
-004 |
|
Sec motion dec |
-006 |
|
Notes |
N
V
(See Notes, Proper motion indicates physical) |
|
rPM=0.112 (< 0.3, Physical double)
This double is physical.
18090-3617 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
209765 |
18 09 02 -36 17 05 |
RST 3155 Aa,Ab |
2017 |
10 |
21 |
0.2 |
9.15 |
9.60 |
0.45 |
|
|
Show |
HD 165728 |
209765 |
18 09 02 -36 17 05 |
SHY 738 AB |
1998 |
4 |
254 |
999.9 |
8.56 |
9.01 |
0.45 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 165728 |
|
Constellation |
Sagittarius |
|
SAO |
209765 |
|
HIP |
88920 |
|
Tycho2 |
7404-05122-1 |
|
Gaia DR2 |
4037995833655866752 |
|
HD |
165728 |
|
CD |
CD-3612259 |
|
CP |
CP-36 8022 |
|
Distance |
88.34 |
|
Distance ly |
288.17 |
|