19423+4248 KOI 987 AB
19h 42m 17.79s +42° 48' 23.1" P.A. 226.00 sep 2.0 mag 12.33,16.40
| Coord 2000 |
19423+4248 |
|
Discov num |
KOI 987 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 42 17.79 +42 48 23.1 |
|
| Date first |
2010 |
|
Date last |
2016 |
|
Obs |
8 |
|
| Pa first |
227 |
|
Pa last |
225.6 |
|
P.A. Now (θ) |
225.6° |
|
| Sep first |
2.0 |
|
Sep last |
1.966 |
|
Sep. Now (ρ) |
1.966" |
|
| Mag pri |
12.33 |
|
Mag sec |
16.40 |
|
delta mag (ΔM) |
4.07 |
|
Spectral class |
|
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
T
R
(Parallax indicates physical, Red magnitudes) |
|
This double is physical.
19423+4248 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
19 42 18 +42 48 23 |
KOI 987 AB |
2016 |
8 |
226 |
2.0 |
12.33 |
16.40 |
4.07 |
|
<=== |
| Show |
|
|
19 42 18 +42 48 23 |
KOI 987 AC |
2012 |
1 |
143 |
2.2 |
10.80 |
17.40 |
6.60 |
|
|
| Show |
|
|
19 42 18 +42 48 23 |
KOI 987 AD |
2012 |
1 |
157 |
5.3 |
10.80 |
18.30 |
7.50 |
|
|
| Show |
|
|
19 42 18 +42 48 23 |
KOI 987 AE |
2014 |
1 |
1 |
6.0 |
10.80 |
19.60 |
8.80 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
2077994272606400512 |
|
