WDS 20449+1219 STF 2723 AB (HD 197684) : NOTES
| discov_num |
notes |
refcode |
| B 2910 |
Aa,Ab: Needs speckle confirmation. One component possibly variable. |
|
REFERENCES
| refcode |
metd |
author |
reference |
| Izm2019 |
orb u |
Izmailov, I.S. |
2019AstL...45...30I |
| Izm2019 |
|
Ast. Lett. 45, 30, 2019 |
|
| Izm2019 |
|
(Orbital elements from weighted solutions used when available (Table 2), |
|
| Izm2019 |
|
unweighted elements (Table 1) used for remaining 29 systems.) |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
B |
van den Bos, W.H. |
| 212 |
BU |
Burnham, S.W. (BU 1 - 81) |
| 390 |
STF |
Struve, F.G.W. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 20449+1219 |
STF2723 |
AB |
2008 |
178 |
135 |
1.0 |
7.01 |
8.30 |
A3IV |
D |
204454.58+121845.6 |
| 20449+1219 |
STF2723 |
AB |
2009 |
183 |
136 |
1.0 |
7.01 |
8.30 |
A3IV |
N D |
204454.58+121845.6 |
| 20449+1219 |
STF2723 |
AB |
2011 |
184 |
146 |
1.2 |
7.01 |
8.30 |
A3IV |
N D |
204454.58+121845.6 |
| 20449+1219 |
STF2723 |
AB |
2016 |
179 |
140 |
1.0 |
7.01 |
8.30 |
A3IV |
N |
204454.58+121845.6 |
| 20449+1219 |
STF2723 |
AB |
2018 |
181 |
140 |
1.0 |
7.01 |
8.30 |
A3IV |
N |
204454.58+121845.6 |
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