WDS 12540+5558 BLM 2 (Alioth) : NOTES
discov_num |
notes |
refcode |
BLM 2 |
eps UMa = 77 UMa = Alioth. |
|
|
An Alpha CVn-type variable and eclipsing system. |
|
|
1975.383: Erroneously listed as HD 112815 in Morgan et al. (1978) |
BLM1978 |
|
notes. |
|
|
The Yale Bright Star Catalogue cites this star as a spectroscopic |
Hof1982 |
|
variable with periods of 4.15 years and 0.95 days; the object is also |
|
|
a photometric variable with period 5.09 days. This observation |
|
|
presumably resolved the longer period system. |
BLM1978 |
REFERENCES
refcode |
metd |
author |
reference |
BLM1978 |
S j |
Morgan, B.L., Beddoes, D.R., Scaddan, R.J. & Dainty, J.C. |
1978MNRAS.183..701M |
BLM1978 |
|
MNRAS 183, 701, 1978 |
|
Hof1982 |
- |
Hoffleit, D. & Jaschek, C. |
1982bscf.book.....H |
Hof1982 |
|
The Bright Star Catalogue, Fourth Revised Edition, 1982 |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
12540+5558 |
BLM 2 |
|
1975 |
1 |
95 |
0.1 |
1.77 |
|
A0p |
N |
125401.63+555735.4 |
12540+5558 |
BLM 2 |
|
2002 |
2 |
60 |
0.1 |
1.77 |
|
A0p |
N D |
125401.63+555735.4 |
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