20307+2657 OPI 25 AD
20h 30m 46.95s +26° 57' 34.6" P.A. 357.00 sep 103.7 mag 10.03,11.80
| Coord 2000 |
20307+2657 |
|
Discov num |
OPI 25 |
|
Comp |
AD |
|
Coord arcsec 2000 |
20 30 46.95 +26 57 34.6 |
|
| Date first |
1924 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
356 |
|
Pa last |
357.1 |
|
P.A. Now (θ) |
357.1° |
|
| Sep first |
99.9 |
|
Sep last |
103.727 |
|
Sep. Now (ρ) |
103.727" |
|
| Mag pri |
10.03 |
|
Mag sec |
11.80 |
|
delta mag (ΔM) |
1.77 |
|
Spectral class |
|
|
| Pri motion ra |
-036 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-043 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
rPM=0.908
This double is not physical.
20307+2657 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 30 47 +26 57 35 |
OPI 25 AB |
2015 |
9 |
29 |
14.0 |
10.03 |
13.50 |
3.47 |
|
|
| Show |
HD 340458 |
|
20 30 47 +26 57 35 |
OPI 25 AC |
2015 |
9 |
324 |
27.0 |
10.03 |
12.50 |
2.47 |
|
|
| Show |
|
|
20 30 47 +26 57 35 |
OPI 25 AD |
2015 |
9 |
357 |
103.7 |
10.03 |
11.80 |
1.77 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vulpecula |
|
Tycho2 |
2165-00677-1 |
|
Gaia DR2 |
1856738212032193920 |
|
HD |
340458 |
|
| DM |
BD+26 3916 |
|
