22259-7501 DUN 238 AB (HD 212168)
22h 25m 51.16s -75° 00' 56.5" P.A. 78.00 sep 21.5 mag 6.19,8.85 Sp G3V dist. 23.05 pc (75.19 l.y.)
| Coord 2000 |
22259-7501 |
|
Discov num |
DUN 238 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 25 51.16 -75 00 56.5 |
|
| Date first |
1826 |
|
Date last |
2015 |
|
Obs |
23 |
|
| Pa first |
90 |
|
Pa last |
78.3 |
|
P.A. Now (θ) |
78.3° |
|
| Sep first |
14.0 |
|
Sep last |
21.475 |
|
Sep. Now (ρ) |
21.475" |
|
| Mag pri |
6.19 |
|
Mag sec |
8.85 |
|
delta mag (ΔM) |
2.66 |
|
Spectral class |
G3V (yellow) |
|
| Pri motion ra |
+058 |
|
Sec motion ra |
+068 |
|
| Pri motion dec |
+012 |
|
Sec motion dec |
+009 |
|
| Notes |
N
V
Z
(See Notes, Proper motion indicates physical, Parallax indicates components are physical) |
|
rPM=0.152 (< 0.3, Physical double)
This double is physical.
22259-7501 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 212168 |
258036 |
22 25 51 -75 00 56 |
DUN 238 AB |
2015 |
23 |
78 |
21.5 |
6.19 |
8.85 |
2.66 |
|
<=== |
| Show |
|
258036 |
22 25 51 -75 00 56 |
KO 5 AC |
2016 |
8 |
129 |
264.8 |
6.19 |
13.00 |
6.81 |
|
|
| Show |
|
|
22 25 56 -75 00 53 |
TOK 434 Ba,Bb |
2021 |
8 |
56 |
0.3 |
9.10 |
11.00 |
1.90 |
Y |
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 212168 |
|
Constellation |
Octans |
|
SAO |
258036 |
|
HIP |
110712 |
|
| Tycho2 |
9475-02322-1 |
|
Gaia DR2 |
6357835694518769408 |
|
HD |
212168 |
|
HR |
8526 |
|
| GC |
31308 |
|
CP |
CP-75 1748 |
|
FK5 |
3789 |
|
Distance |
23.05 |
|
| Distance ly |
75.19 |
|
WDS 22259-7501 DUN 238 AB (HD 212168) : NOTES
| discov_num |
notes |
refcode |
| DUN 238 |
AB + KO 5AC + TOK 434Ba,Bb: HIP 110712 and 110719 form the 20".6 |
|
|
pair DUN 238 AB. We observed both components. The A component has a |
|
|
variable RV according to the GCS, but not confirmed by Jones et al. |
|
|
(2002); it was unresolved. The newly found pair Ba,Bb has a period on |
CPS2002b |
|
the order of 10yr. Considering the distant companion |
Cab2012 |
|
C found by Caballero (2012), the system contains at least 4 stars. |
Tok2015c |
REFERENCES
| refcode |
metd |
author |
reference |
| Cab2012 |
E+ - |
Caballero, J.A. |
2012Obs...132....1C |
| Cab2012 |
+Pa |
Observatory 132, 1, 2012 |
|
| CPS2002b |
not - |
Jones, H.R.A., Butler, R.P., Marcy, G.W., Tinney, C.G., Penny, A.J., McCarthy, C., |
2002MNRAS.337.1170J |
| CPS2002b |
|
& Carter, B.D. |
|
| CPS2002b |
|
MNRAS 337, 1170, 2002 |
|
| Tok2015c |
orb+j |
Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. |
2015AJ....150...50T |
| Tok2015c |
+St |
AJ 150, 50, 2015 (some measures corrected in Tok2017b) |
2017AJ....154..110T |
DISCOVERER
| idgroup |
discov |
author |
| 1 |
DUN |
Dunlop, J. |
| 3 |
KO |
Koenigstuhl (Max Planck Institute) (see papers by Caballero) |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 22259-7501 |
DUN 238 |
AB |
1999 |
18 |
80 |
20.8 |
6.19 |
8.85 |
G3V |
VD |
222551.16-750056.5 |
| 22259-7501 |
DUN 238 |
AB |
2010 |
21 |
80 |
20.8 |
6.19 |
8.85 |
G3V |
VD |
222551.16-750056.5 |
| 22259-7501 |
DUN 238 |
AB |
2015 |
22 |
79 |
20.9 |
6.19 |
8.85 |
G3V |
NV Z |
222551.16-750056.5 |
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WDS 22259-7501 DUN 238 AB (HD 212168) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 22259-7501 DUN 238 AB (HD 212168) : MEASURES
No records found.
WDS 22259-7501 (HD 212168) : VIRTUAL EYEPIECE
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WDS 22259-7501 (HD 212168) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
