21254+1121 A 887 AC (HD 204011)
21h 25m 26.92s +11° 20' 45.7" P.A. 322.00 sep 12.3 mag 8.29,11.70 Sp F8 dist. 238.66 pc (778.51 l.y.)
| Coord 2000 |
21254+1121 |
|
Discov num |
A 887 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 25 26.92 +11 20 45.7 |
|
| Date first |
1930 |
|
Date last |
2014 |
|
Obs |
7 |
|
| Pa first |
312 |
|
Pa last |
322 |
|
P.A. Now (θ) |
322° |
|
| Sep first |
10.5 |
|
Sep last |
12.27 |
|
Sep. Now (ρ) |
12.27" |
|
| Mag pri |
8.29 |
|
Mag sec |
11.70 |
|
delta mag (ΔM) |
3.41 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
|
|
| Pri motion dec |
-021 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21254+1121 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
107122 |
21 25 27 +11 20 46 |
A 887 AB |
2021 |
18 |
213 |
0.1 |
8.29 |
9.70 |
1.41 |
|
|
| Show |
HD 204011 |
107122 |
21 25 27 +11 20 46 |
A 887 AC |
2014 |
7 |
322 |
12.3 |
8.29 |
11.70 |
3.41 |
|
<=== |
| Show |
|
107122 |
21 25 27 +11 20 46 |
FYM 330 AD |
2015 |
6 |
79 |
22.9 |
8.29 |
14.90 |
6.61 |
|
|
| Show |
|
107122 |
21 25 27 +11 20 46 |
FYM 330 AE |
2015 |
3 |
61 |
16.2 |
8.29 |
15.80 |
7.51 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 204011 |
|
Constellation |
Equuleus |
|
SAO |
107122 |
|
HIP |
105784 |
|
| Tycho2 |
1114-00283-1 |
|
Gaia DR2 |
1745424994849097472 |
|
HD |
204011 |
|
BD |
BD+10 4542 |
|
| Distance |
238.66 |
|
Distance ly |
778.51 |
|
WDS 21254+1121 A 887 AC (HD 204011) : NOTES
| discov_num |
notes |
refcode |
| A 887 |
AB: Closed in in the last 30 years. Needs speckle. |
|
|
AC: Based on inspection of the field, the Aitken measure apparently |
A__1932a |
|
had a typographical error in theta - 112.4 should be 312.4. |
|
|
AB: Rectilinear solution by Rica & Zirm (2012). |
FMR2012i |
REFERENCES
| refcode |
metd |
author |
reference |
| A__1932a |
Ma - |
Aitken, R.G. |
1932QB821.A43...... |
| A__1932a |
|
Aitken Double Star Catalogue, 1932 |
|
| FMR2012i |
orb - |
Rica Romero, F.M. & Zirm, H. |
2012IAUDS.177Q...1R |
| FMR2012i |
|
Inf. Circ. 177, 1, 2012 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
A |
Aitken, R.G. |
| 312 |
FYM |
Fay, M. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 21254+1121 |
A 887 |
AC |
1930 |
1 |
112 |
10.5 |
8.70 |
11.70 |
F8 |
N |
212526.93+112046.0 |
| 21254+1121 |
A 887 |
AC |
2000 |
2 |
321 |
12.1 |
8.29 |
11.70 |
F8 |
N D |
212526.92+112045.7 |
| 21254+1121 |
A 887 |
AC |
2013 |
4 |
322 |
12.4 |
8.29 |
11.70 |
F8 |
N |
212526.92+112045.7 |
| 21254+1121 |
A 887 |
AC |
2014 |
7 |
322 |
12.3 |
8.29 |
11.70 |
F8 |
N |
212526.92+112045.7 |
If you need more information about this double, apply for a
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WDS 21254+1121 A 887 AC (HD 204011) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 21254+1121 A 887 AC (HD 204011) : MEASURES
No records found.
WDS 21254+1121 (HD 204011) : VIRTUAL EYEPIECE
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Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 21254+1121 (HD 204011) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
