20546-4938 TOK 680 AB (HD 198777)
20h 54m 36.45s -49° 38' 00.3" P.A. 271.00 sep 5.3 mag 8.07,10.16 Sp G8V dist. 64.39 pc (210.04 l.y.)
Coord 2000 |
20546-4938 |
|
Discov num |
TOK 680 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 54 36.45 -49 38 00.3 |
|
Date first |
1999 |
|
Date last |
1999 |
|
Obs |
1 |
|
Pa first |
271 |
|
Pa last |
271.4 |
|
P.A. Now (θ) |
271.4° |
|
Sep first |
5.3 |
|
Sep last |
5.25 |
|
Sep. Now (ρ) |
5.25" |
|
Mag pri |
8.07 |
|
Mag sec |
10.16 |
|
delta mag (ΔM) |
2.09 |
|
Spectral class |
G8V (yellow) |
|
Pri motion ra |
+091 |
|
Sec motion ra |
|
|
Pri motion dec |
+012 |
|
Sec motion dec |
|
|
Notes |
K
(K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
20546-4938 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 198777 |
|
20 54 36 -49 38 00 |
TOK 680 AB |
1999 |
1 |
271 |
5.3 |
8.07 |
10.16 |
2.09 |
|
<=== |
Show |
|
|
20 54 36 -49 38 00 |
TOK 680 AC |
2016 |
4 |
333 |
7.0 |
8.07 |
12.18 |
4.11 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 198777 |
|
Constellation |
Indus |
|
HIP |
103208 |
|
Tycho2 |
8416-00165-1 |
|
Gaia DR2 |
6478238849190383104 |
|
HD |
198777 |
|
CD |
CD-5013172 |
|
CP |
CP-5011464 |
|
Distance |
64.39 |
|
Distance ly |
210.04 |
|