WDS 19410+3237 BLL 41 AC : NOTES
| discov_num |
notes |
refcode |
| BLL 41 |
A is the semiregular variable TT Cyg. |
|
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 |
| 19410+3237 |
BLL 41 |
AC |
1998 |
3 |
49 |
83.3 |
7.88 |
11.10 |
N |
N D |
194057.00+323705.7 |
| 19410+3237 |
BLL 41 |
AC |
2002 |
4 |
49 |
83.7 |
7.88 |
11.10 |
N |
N D |
194057.00+323705.7 |
| 19410+3237 |
BLL 41 |
AC |
2015 |
5 |
49 |
83.4 |
7.88 |
12.44 |
N |
N |
194057.00+323705.7 |
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