17377+7102 HEI 863 AC
17h 37m 41.73s +71° 01' 50.5" P.A. 84.00 sep 4.9 mag 11.81,12.30
| Coord 2000 |
17377+7102 |
|
Discov num |
HEI 863 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 37 41.73 +71 01 50.5 |
|
| Date first |
1990 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
84 |
|
Pa last |
83.5 |
|
P.A. Now (θ) |
83.5° |
|
| Sep first |
4.9 |
|
Sep last |
4.867 |
|
Sep. Now (ρ) |
4.867" |
|
| Mag pri |
11.81 |
|
Mag sec |
12.30 |
|
delta mag (ΔM) |
0.49 |
|
Spectral class |
|
|
| Pri motion ra |
+002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-017 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
17377+7102 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
17 37 42 +71 01 50 |
HEI 863 AB |
2015 |
4 |
9 |
4.1 |
11.81 |
12.80 |
0.99 |
|
|
| Show |
|
|
17 37 42 +71 01 50 |
HEI 863 AC |
2015 |
4 |
84 |
4.9 |
11.81 |
12.30 |
0.49 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Draco |
|
Tycho2 |
4432-00955-1 |
|
Gaia DR2 |
1639127852808137856 |
|
