WDS 21308+4827 A 770 AB : NOTES
| discov_num |
notes |
refcode |
| A 770 |
Also a spectroscopic binary of indeterminate period. |
Tok2019b |
|
Espin calls this HJ 1657, BDS 11057. |
Es_1932B |
REFERENCES
| refcode |
metd |
author |
reference |
| Es_1932B |
Mb - |
Espin, T.E. |
1932QB821.A43...... |
| Es_1932B |
|
cited in ADS (Aitken Double Star Cat.), 1932 |
|
| Tok2019b |
not j |
Sperauskas, J., Deveilkis, V. & Tokovinin, A. |
2019A&A...626A..31S |
| Tok2019b |
|
A&A 626 A31, 2019 |
|
| Tok2019e |
St j |
Tokovinin, A., Everett, M.E., Horch, E.P., Torres, G. & Latham, D.W. |
2019AJ....158..167T |
| Tok2019e |
+orb |
AJ 158, 167, 2019 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
A |
Aitken, R.G. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 21308+4827 |
A 770 |
AB |
1989 |
8 |
143 |
0.2 |
8.80 |
11.30 |
K0 |
N |
213048.00+482725.4 |
| 21308+4827 |
A 770 |
AB |
2017 |
9 |
317 |
1.1 |
7.99 |
7.99 |
K0 |
N |
213048.00+482725.4 |
| 21308+4827 |
A 770 |
AB |
2018 |
10 |
143 |
0.1 |
7.99 |
7.99 |
K0 |
NO |
213048.00+482725.4 |
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