21468+4919 MIU 3 (Pi2 Cyg)
21h 46m 47.61s +49° 18' 34.5" P.A. 129.00 sep 0.1 mag 4.44,5.98 Sp B3III dist. 338.98 pc (1105.75 l.y.)
| Coord 2000 |
21468+4919 |
|
Discov num |
MIU 3 |
|
Comp |
|
|
Coord arcsec 2000 |
21 46 47.61 +49 18 34.5 |
|
| Date first |
1991 |
|
Date last |
1996 |
|
Obs |
4 |
|
| Pa first |
123 |
|
Pa last |
129.4 |
|
P.A. Now (θ) |
129.4° |
|
| Sep first |
0.1 |
|
Sep last |
0.105 |
|
Sep. Now (ρ) |
0.105" |
|
| Mag pri |
4.44 |
|
Mag sec |
5.98 |
|
delta mag (ΔM) |
1.54 |
|
Spectral class |
B3III (blue-white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
Pi2 Cyg |
|
Constellation |
Cygnus |
|
SAO |
51293 |
|
HIP |
107533 |
|
| Tycho2 |
3612-03062-1 |
|
Gaia DR2 |
1978185009394330240 |
|
HD |
207330 |
|
HR |
8335 |
|
| GC |
30512 |
|
BD |
BD+48 3504 |
|
Bayer |
Pi 2 Cygni |
|
Bayer name |
Pi2 Cyg |
|
| Flamsteed |
81 Cygni |
|
Flamsteed name |
81 Cyg |
|
FK5 |
821 |
|
Distance |
338.98 |
|
| Distance ly |
1105.75 |
|
Bayer greek |
π2 Cyg |
|
