WDS 18421+3445 STF 2372 AB (HD 173087) : NOTES
| discov_num |
notes |
refcode |
| B 2546 |
A is called a spectroscopic binary, but the variation is likely caused |
|
|
by motion in the close visual pair. |
|
|
B is BD+34@3286. |
|
| STF2372 |
AB: H 4 94. |
MEv2010 |
| STF2372 |
AB: SEI 571. |
Nsn2017b |
REFERENCES
| refcode |
metd |
author |
reference |
| MEv2010 |
- |
MacEvoy, B. |
................... |
| MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
| Nsn2017b |
not - |
Nanson, J. |
................... |
| Nsn2017b |
|
private communication, 2017 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
B |
van den Bos, W.H. |
| 212 |
BLL |
Ball, R.S. |
| 219 |
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 |
| 18421+3445 |
STF2372 |
AB |
2007 |
60 |
82 |
24.8 |
6.45 |
7.73 |
|
YD |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2008 |
61 |
82 |
24.9 |
6.45 |
7.73 |
|
YD |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2010 |
63 |
82 |
25.2 |
6.45 |
7.73 |
|
NYD |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2012 |
66 |
82 |
24.9 |
6.45 |
7.73 |
|
NYD |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2013 |
69 |
82 |
24.9 |
6.45 |
7.73 |
B5V |
NY |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2014 |
71 |
82 |
24.9 |
6.45 |
7.73 |
B5V |
NY |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2015 |
72 |
82 |
25.1 |
6.45 |
7.73 |
B5V |
NY |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2016 |
74 |
82 |
25.2 |
6.45 |
7.73 |
B5V |
NY |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2017 |
75 |
83 |
25.0 |
6.45 |
7.73 |
B5V |
NY |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2018 |
77 |
83 |
25.0 |
6.45 |
7.73 |
B5V |
NY |
184208.09+344446.7 |
| 18421+3445 |
STF2372 |
AB |
2019 |
78 |
82 |
25.0 |
6.45 |
7.73 |
B5V |
NY |
184208.09+344446.7 |
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