20435+1657 STF 2720 (HD 197474)
20h 43m 27.91s +16° 56' 41.9" P.A. 177.00 sep 4.0 mag 9.22,9.56 Sp F8 dist. 100.5 pc (327.83 l.y.)
| Coord 2000 |
20435+1657 |
|
Discov num |
STF2720 |
|
Comp |
|
|
Coord arcsec 2000 |
20 43 27.91 +16 56 41.9 |
|
| Date first |
1830 |
|
Date last |
2016 |
|
Obs |
58 |
|
| Pa first |
185 |
|
Pa last |
177.1 |
|
P.A. Now (θ) |
177.1° |
|
| Sep first |
3.8 |
|
Sep last |
3.952 |
|
Sep. Now (ρ) |
3.952" |
|
| Mag pri |
9.22 |
|
Mag sec |
9.56 |
|
delta mag (ΔM) |
0.34 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-010 |
|
Sec motion ra |
-017 |
|
| Pri motion dec |
+058 |
|
Sec motion dec |
+025 |
|
| Notes |
|
|
rPM=0.573
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 197474 |
|
Constellation |
Delphinus |
|
SAO |
106426 |
|
HIP |
102283 |
|
| Tycho2 |
1638-00437-1 |
|
Gaia DR2 |
1811243612019592064 |
|
HD |
197474 |
|
GC |
28874 |
|
| BD |
BD+16 4355 |
|
Distance |
100.5 |
|
Distance ly |
327.83 |
|
