WDS 18253+4846 STT 351 AC (HD 170109) : NOTES
| discov_num |
notes |
refcode |
| HU 66 |
Van Biesbroeck (1954) was unable to resolve this system in 1943, |
|
|
1944 or 1945 on the 82-inch telescope at the McDonald Observatory. |
|
|
However, since he resolved the system successfully in 1946 with the |
|
|
same telescope, and in 1940 with a smaller (40-inch) telescope, the |
|
|
non-resolution is probably due to bad seeing or ID error. |
USN2002 |
| STT 351 |
AC: Additional notes may be found in Muller (1955). |
Mlr1955c |
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.) |
|
| Mlr1955c |
Mc - |
Muller, P. |
1955JO.....38..221M |
| Mlr1955c |
|
J. Obs. 38, 221, 1955 |
|
| USN2002 |
orb - |
Seymour, D., Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. |
2002AJ....123.1023S |
| USN2002 |
|
AJ 123, 1023, 2002 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
HU |
Hussey, W.F. |
| 58 |
STT |
Struve, O. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 18253+4846 |
STT 351 |
AC |
2005 |
87 |
29 |
0.6 |
7.90 |
8.25 |
|
D |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2007 |
88 |
23 |
0.7 |
7.90 |
8.25 |
|
D |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2010 |
90 |
26 |
0.8 |
7.90 |
8.25 |
|
N D |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2011 |
92 |
25 |
0.8 |
7.90 |
8.25 |
G5 |
N |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2013 |
90 |
25 |
0.8 |
7.90 |
8.25 |
G5 |
N |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2015 |
91 |
26 |
0.8 |
7.90 |
8.25 |
G5 |
N |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2017 |
92 |
29 |
0.8 |
7.90 |
8.25 |
G5 |
N |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2019 |
96 |
26 |
0.8 |
7.90 |
8.25 |
G5 |
NO |
182518.20+484542.5 |
| 18253+4846 |
STT 351 |
AC |
2021 |
102 |
26 |
1.0 |
7.90 |
8.25 |
G5 |
NO |
182518.20+484542.5 |
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