WDS 04509-5328 DUN 18 AB (Iot Pic) : NOTES
| discov_num |
notes |
refcode |
| DUN 18 |
iot Pic |
|
| SHY 172 |
AC: HIP 22531 + HIP 22562. |
|
| SHY 173 |
BC: HIP 22534 + HIP 22562. |
|
|
In addition to the three visual components, which are physical, the A |
Tok2020h |
|
component has two spectroscopic components with periods of 1.6d and |
|
|
1003d. The B component also has a spectroscopic component with a period |
|
|
of 208d making this a physical sextuple. The AB visual pair has an |
|
|
estimated period of 6k yr and the wide AB,C pair has an estimated |
|
|
period of 600k years. |
|
REFERENCES
| refcode |
metd |
author |
reference |
| Tok2020h |
not j |
Tokovinin, A. |
2020AJ....160...69T |
| Tok2020h |
|
AJ 160, 69, 2020 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
DUN |
Dunlop, J. |
| 3 |
SHY |
Shaya, E.J. & Olling, R. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 04509-5328 |
DUN 18 |
AB |
2008 |
40 |
58 |
12.7 |
5.61 |
6.24 |
F0IV F4V: |
NZD |
045055.31-532741.5 |
| 04509-5328 |
DUN 18 |
AB |
2009 |
41 |
59 |
12.8 |
5.61 |
6.24 |
F0IV F4V: |
NZD |
045055.31-532741.5 |
| 04509-5328 |
DUN 18 |
AB |
2015 |
43 |
58 |
12.3 |
5.61 |
6.24 |
F0IV+F4V: |
NZW |
045055.31-532741.5 |
If you need more information about this double, apply for a
data request form to the WDS.
