20426+1244 STF 2718 AB (HD 197312)
20h 42m 33.47s +12° 43' 41.9" P.A. 87.00 sep 8.5 mag 8.28,8.39 Sp F5 dist. 144.51 pc (471.39 l.y.)
| Coord 2000 |
20426+1244 |
|
Discov num |
STF2718 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 42 33.47 +12 43 41.9 |
|
| Date first |
1824 |
|
Date last |
2020 |
|
Obs |
85 |
|
| Pa first |
87 |
|
Pa last |
87.2 |
|
P.A. Now (θ) |
87.2° |
|
| Sep first |
9.2 |
|
Sep last |
8.489 |
|
Sep. Now (ρ) |
8.489" |
|
| Mag pri |
8.28 |
|
Mag sec |
8.39 |
|
delta mag (ΔM) |
0.11 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
-023 |
|
Sec motion dec |
-026 |
|
| Notes |
|
|
rPM=0.158 (< 0.3, Physical double)
This double is physical.
20426+1244 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 197312 |
106409 |
20 42 33 +12 43 42 |
STF 2718 AB |
2020 |
85 |
87 |
8.5 |
8.28 |
8.39 |
0.11 |
|
<=== |
| Show |
|
106409 |
20 42 33 +12 43 42 |
STF 2718 AC |
2015 |
20 |
346 |
167.2 |
8.28 |
9.02 |
0.74 |
|
|
| Show |
|
106410 |
20 42 34 +12 43 42 |
STF 2718 BC |
2015 |
16 |
346 |
167.3 |
8.39 |
9.02 |
0.63 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 197312 |
|
Constellation |
Delphinus |
|
SAO |
106409 |
|
HIP |
102206 |
|
| Tycho2 |
1097-02966-1 |
|
Gaia DR2 |
1755224014276610432 |
|
HD |
197312 |
|
GC |
28855 |
|
| BD |
BD+12 4440 |
|
Distance |
144.51 |
|
Distance ly |
471.39 |
|
