20422+1952 LBU 19 AD
20h 42m 09.58s +19° 51' 52.6" P.A. 23.00 sep 129.8 mag 7.60,12.96 Sp K0 dist. 197.63 pc (644.67 l.y.)
| Coord 2000 |
20422+1952 |
|
Discov num |
LBU 19 |
|
Comp |
AD |
|
Coord arcsec 2000 |
20 42 09.58 +19 51 52.6 |
|
| Date first |
1993 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
22 |
|
Pa last |
22.8 |
|
P.A. Now (θ) |
22.8° |
|
| Sep first |
127.8 |
|
Sep last |
129.813 |
|
Sep. Now (ρ) |
129.813" |
|
| Mag pri |
7.60 |
|
Mag sec |
12.96 |
|
delta mag (ΔM) |
5.36 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
+009 |
|
Sec motion ra |
-009 |
|
| Pri motion dec |
-006 |
|
Sec motion dec |
-026 |
|
| Notes |
|
|
rPM=0.978
This double is not physical.
20422+1952 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 197274 |
106401 |
20 42 10 +19 51 53 |
LBU 19 AB |
2015 |
10 |
138 |
124.7 |
7.60 |
11.68 |
4.08 |
|
|
| Show |
|
106401 |
20 42 10 +19 51 53 |
LBU 19 AC |
2015 |
7 |
111 |
94.9 |
7.60 |
12.76 |
5.16 |
|
|
| Show |
|
106401 |
20 42 10 +19 51 53 |
LBU 19 AD |
2015 |
7 |
23 |
129.8 |
7.60 |
12.96 |
5.36 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Delphinus |
|
SAO |
106401 |
|
HIP |
102170 |
|
Tycho2 |
1642-00803-1 |
|
| Gaia DR2 |
1814272530333270400 |
|
HD |
197274 |
|
BD |
BD+19 4489 |
|
Distance |
197.63 |
|
| Distance ly |
644.67 |
|
