WDS 20134+3844 BLL 47 AB (RS Cyg) : NOTES
| discov_num |
notes |
refcode |
| BLL 47 |
A is the semiregular variable RS Cyg. |
|
|
B is BD+38@3956. |
|
REFERENCES
| refcode |
metd |
author |
reference |
| Bll1872 |
orb - |
Ball, R.S. |
. |
| Bll1872 |
|
Proc. Royal Irish Acad., June 1872 |
|
| Bll1884 |
Ma j |
Ball, R.S. |
1884DunOP...5....1B |
| Bll1884 |
|
Pub. Dunsink Obs. 5, 1, 1884 |
|
| Bll1913A |
Ma - |
Ball, R.S. |
1913QB811.B8....... |
| Bll1913A |
|
cited by Burnham (Carnegie Inst. Wash. #168, 1913) |
|
| Bll1932A |
- |
Ball, R.S. |
1932QB821.A43...... |
| Bll1932A |
|
cited in ADS (Aitken Double Star Cat.), 1932 |
|
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 20134+3844 |
BLL 47 |
AB |
2002 |
21 |
354 |
129.9 |
8.00 |
7.15 |
CII |
N D |
201323.66+384344.5 |
| 20134+3844 |
BLL 47 |
AB |
2012 |
25 |
354 |
131.3 |
8.00 |
7.15 |
CII |
N D |
201323.66+384344.5 |
| 20134+3844 |
BLL 47 |
AB |
2015 |
24 |
354 |
131.7 |
8.00 |
7.15 |
CII |
N |
201323.66+384344.5 |
If you need more information about this double, apply for a
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