08447-2126 HDS 1260 AB
08h 44m 41.00s -21° 25' 48.0" P.A. 136.00 sep 0.5 mag 10.31,13.83 Sp K7V dist. 36.43 pc (118.83 l.y.)
Coord 2000 |
08447-2126 |
|
Discov num |
HDS1260 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 44 41.00 -21 25 48.0 |
|
Date first |
1991 |
|
Date last |
2023 |
|
Obs |
19 |
|
Pa first |
266 |
|
Pa last |
135.5 |
|
P.A. Now (θ) |
135.5° |
|
Sep first |
0.8 |
|
Sep last |
0.508 |
|
Sep. Now (ρ) |
0.508" |
|
Mag pri |
10.31 |
|
Mag sec |
13.83 |
|
delta mag (ΔM) |
3.52 |
|
Spectral class |
K7V (yellow-orange) |
|
Pri motion ra |
-005 |
|
Sec motion ra |
-005 |
|
Pri motion dec |
-021 |
|
Sec motion dec |
-020 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.046 (< 0.3, Physical double)
This double is physical.
08447-2126 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
08 44 41 -21 25 48 |
HDS 1260 AB |
2023 |
19 |
136 |
0.5 |
10.31 |
13.83 |
3.52 |
Y |
<=== |
Show |
|
|
08 44 41 -21 25 48 |
TOK 395 AC |
2016 |
6 |
175 |
0.6 |
10.30 |
11.00 |
0.70 |
|
|
Show |
|
|
08 44 41 -21 25 48 |
TOK 395 BC |
2023 |
16 |
153 |
0.1 |
10.90 |
11.00 |
0.10 |
Y |
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Pyxis |
|
HIP |
42910 |
|
Tycho2 |
6024-02350-1 |
|
Gaia DR2 |
5702585141560941056 |
|
BD |
BD-20 2665 |
|
Distance |
36.43 |
|
Distance ly |
118.83 |
|
ORBITAL ELEMENTS
Period (P) | 106.1y | ± 5.3 |
Periastron (T) | 2126.4y | ± 3.1 |
Semi-major axis (a) | 0.764a | ± 0.027 |
Eccentricity (e) | 0.167 | ± 0.066 |
Inclination (i) | 149° | ± 10 |
Longitude of periastron (ω) | 97° | ± 13 |
Node (Ω) | 248.7° | ± 8.8 |
Notes | n | |
Reference | Hor2021b | |
Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
240.8 |
0.736 |
2001 |
237.7 |
0.726 |
2002 |
234.5 |
0.715 |
2003 |
231.1 |
0.704 |
2004 |
227.7 |
0.692 |
2005 |
224.1 |
0.680 |
2006 |
220.4 |
0.667 |
2007 |
216.6 |
0.654 |
2008 |
212.6 |
0.641 |
2009 |
208.5 |
0.628 |
2010 |
204.1 |
0.616 |
2011 |
199.6 |
0.603 |
2012 |
194.9 |
0.592 |
2013 |
190.1 |
0.581 |
2014 |
185.0 |
0.571 |
2015 |
179.8 |
0.563 |
2016 |
174.5 |
0.556 |
2017 |
169.0 |
0.551 |
2018 |
163.4 |
0.547 |
2019 |
157.8 |
0.546 |
2020 |
152.2 |
0.546 |
2021 |
146.6 |
0.549 |
2022 |
141.1 |
0.553 |
2023 |
135.7 |
0.559 |
2024 |
130.4 |
0.566 |
2025 |
125.3 |
0.575 |
2026 |
120.3 |
0.585 |
2027 |
115.5 |
0.596 |
2028 |
110.9 |
0.607 |
2029 |
106.4 |
0.619 |
2030 |
102.1 |
0.631 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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WDS 08447-2126 HDS 1260 AB : NOTES
discov_num |
notes |
refcode |
HDS1260 |
AB + TOK 395: Like WDS 08021-1710, the late-type nearby binary HDS |
|
|
1260 was discovered by Hipparcos and is expected to move rapidly (HIP |
|
|
42910, BD-20 2665). It was targeted at SOAR for the first time. To our |
|
|
surprise, the object turned out to be a resolved triple, with the |
|
|
secondary being a 0".16 pair of equal stars. Hipparcos failed to |
|
|
recognize the triple nature of this star. The estimated period of BC |
|
|
is 15yr. The outer pair AB has closed from 0".8 to 0".5 and moved in |
|
|
position angle since its discovery. The separations between components |
|
|
are comparable, so this triple system may be interesting dynamically. |
Tok2015c |
REFERENCES
refcode |
metd |
author |
reference |
Hor2021b |
S |
Horch, E.P., Broderick, K.G., Casetti-Dinescu, D.I., Henry, T.J., Fekel, F.C., |
2021AJ....161..295H |
Hor2021b |
|
Mutterspaugh, M.W., Willmarth, D.W., Winters, J.G., van Belle, G.T., Clark, C.A. & |
|
Hor2021b |
|
Everett, M.E. |
|
Hor2021b |
|
AJ 161, 295, 2021 |
|
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 |
HDS |
Hipparcos Double Star (from additional DD list) |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
08447-2126 |
HDS1260 |
AB |
2014 |
3 |
183 |
0.5 |
10.31 |
13.83 |
K7V |
|
084441.00-212548.0 |
08447-2126 |
HDS1260 |
AB |
2015 |
5 |
176 |
0.5 |
10.31 |
13.83 |
K7V |
|
084441.00-212548.0 |
08447-2126 |
HDS1260 |
AB |
2016 |
9 |
167 |
0.5 |
10.31 |
13.83 |
K7V |
N |
084441.00-212548.0 |
08447-2126 |
HDS1260 |
AB |
2018 |
10 |
160 |
0.5 |
10.31 |
13.83 |
K7V |
N |
084441.00-212548.0 |
08447-2126 |
HDS1260 |
AB |
2019 |
14 |
148 |
0.5 |
10.31 |
13.83 |
K7V |
N |
084441.00-212548.0 |
08447-2126 |
HDS1260 |
AB |
2020 |
15 |
143 |
0.5 |
10.31 |
13.83 |
K7V |
N |
084441.00-212548.0 |
08447-2126 |
HDS1260 |
AB |
2021 |
16 |
138 |
0.5 |
10.31 |
13.83 |
K7V |
NO |
084441.00-212548.0 |
08447-2126 |
HDS1260 |
AB |
2023 |
19 |
136 |
0.5 |
10.31 |
13.83 |
K7V |
NO |
084441.00-212548.0 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 08447-2126 HDS 1260 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 08447-2126 HDS 1260 AB : MEASURES
No records found.
WDS 08447-2126 : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
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WDS 08447-2126 : ALADIN DSS IMAGE @ 08h 44m 41.00s -21° 25' 48.0"
WDS 08447-2126 HDS 1260 AB : NEIGHBORHOODS
|
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
Show |
name |
coord_2000 |
discov# |
comp |
pa |
sep |
dist(') |
Show |
|
08447-2126 |
HDS1260 |
AB |
136 |
0.5 |
|
Show |
|
08447-2126 |
TOK 395 |
AC |
175 |
0.6 |
|
Show |
|
08447-2126 |
TOK 395 |
BC |
153 |
0.1 |
|
Show |
|
08449-2129 |
B 1988 |
|
197 |
0.5 |
5 |
Show |
|
08445-2133 |
ARA1459 |
|
15 |
7.8 |
8 |
Show |
|
08457-2121 |
J 1531 |
|
15 |
7.7 |
14 |
Show |
|
08432-2149 |
B 1987 |
|
121 |
1.5 |
32 |
Show |
|
08430-2041 |
ARA1060 |
|
314 |
10.1 |
52 |
Show |
|
08405-2101 |
ARA1058 |
|
142 |
11.6 |
64 |
Show |
|
08401-2114 |
BHA 10 |
|
163 |
5.7 |
66 |
Show |
|
08405-2049 |
ARA1059 |
|
90 |
9.9 |
69 |
Show |
|
08443-2016 |
I 813 |
|
297 |
3.2 |
70 |
Show |
|
08495-2054 |
J 1532 |
|
197 |
10.2 |
75 |
Show |
|
08395-2100 |
RST5506 |
|
37 |
2.5 |
77 |
Show |
|
08498-2155 |
B 2189 |
|
85 |
2.0 |
78 |
Show |
|
08484-2027 |
TDS6110 |
|
183 |
0.7 |
79 |
Show |
|
08417-2018 |
J 2645 |
|
306 |
6.8 |
79 |
Show |
|
08391-2139 |
ARA1458 |
|
255 |
7.5 |
79 |
Show |
|
08461-2004 |
TDS6084 |
|
308 |
1.0 |
84 |
Show |
|
08385-2131 |
TDS6001 |
|
354 |
0.9 |
87 |
Show |
|
08491-2229 |
ARA1753 |
|
309 |
11.4 |
89 |
Show |
|
08470-2254 |
ARA1752 |
|
161 |
8.7 |
95 |
Show |
|
08389-2038 |
ARA1056 |
|
129 |
6.3 |
95 |
Show |
|
08382-2211 |
B 2664 |
BC |
59 |
5.3 |
101 |
Show |
|
08382-2211 |
B 2664 |
AB |
129 |
11.3 |
101 |
Show |
|
08382-2211 |
B 2664 |
AC |
108 |
14.0 |
101 |
Show |
|
08492-2246 |
ARA1754 |
|
40 |
11.8 |
102 |
Show |
|
08416-1953 |
RST4418 |
|
139 |
0.5 |
102 |
Show |
|
08411-2257 |
TDS 486 |
|
74 |
1.0 |
105 |
Show |
|
08414-2300 |
RSS 170 |
|
209 |
8.5 |
106 |
Show |
|
08405-2255 |
BRT1466 |
|
126 |
4.0 |
107 |
Show |
|
08391-2240 |
BU 208 |
AB |
56 |
0.5 |
107 |
Show |
|
08391-2240 |
BU 208 |
AC |
184 |
121.0 |
107 |
Show |
|
08391-2240 |
JNN 238 |
AD |
323 |
7.5 |
107 |
Show |
|
08509-2227 |
ARA1755 |
|
17 |
11.0 |
108 |
Show |
|
08442-1938 |
ARA 647 |
|
151 |
9.5 |
109 |
Show |
|
08382-2026 |
ARA1055 |
|
229 |
10.7 |
109 |
Show |
|
08410-2303 |
ARA1748 |
|
76 |
13.9 |
111 |
Show |
|
08437-2316 |
BRT1468 |
|
119 |
4.6 |
111 |
Show |
|
08383-2231 |
ARA1746 |
|
100 |
9.6 |
111 |
Show |
|
08518-2036 |
RST2586 |
|
18 |
0.2 |
111 |
Show |
|
08362-2049 |
ARA1054 |
|
277 |
12.3 |
112 |
Show |
|
08382-2231 |
DAM1427 |
|
164 |
1.9 |
112 |
Show |
|
08428-2315 |
BRT1467 |
|
137 |
3.6 |
112 |
Show |
|
08415-2311 |
ARA1749 |
|
199 |
6.5 |
115 |
Show |
|
08376-2029 |
TDS 480 |
|
37 |
0.8 |
115 |
Show |
|
08518-2026 |
B 1109 |
|
21 |
0.7 |
117 |
Show |
|
08362-2121 |
ARA1456 |
|
66 |
5.7 |
118 |
Show |
|
08380-2013 |
KPP2964 |
|
180 |
1.5 |
120 |
Show |
|
08363-2104 |
I 355 |
|
42 |
0.8 |
120 |
Show |
|
08510-2249 |
ARA1756 |
|
94 |
9.0 |
122 |
|
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WDS 08447-2126 : COMPONENTS
|
A |
B |
B |
pa=0.0°
sep=0.00"
| |
C |
pa=175.3°
sep=0.55"
| pa=175.3°
sep=0.55"
|
08447-2126 A
Coord arcsec 2000 |
084441.00-212548.0 |
|
Mag |
10.31 |
|
Spectral class |
K7V (yellow-orange) |
|
PmRA |
-5.00 |
|
PmDE |
-21.0 |
|
HIP |
42910 |
|
Tycho2 |
6024-02350-1 |
|
BD |
BD-20 2665 |
|
Tycho2 |
6024-02350-1 |
|
Pflag |
|
|
RAmdeg |
131.17082930 |
|
DEmdeg |
-21.43007271 |
|
PmRA |
3.1 |
|
PmDE |
-26.8 |
|
E RAmdeg |
24 |
|
E DEmdeg |
31 |
|
E pmRA |
1.6 |
|
E pmDE |
1.9 |
|
EpRAm |
1983.04 |
|
EpDEm |
1982.68 |
|
Num |
6 |
|
Q RAmdeg |
1.1 |
|
Q DEmdeg |
1.1 |
|
Q pmRA |
1.1 |
|
Q pmDE |
1.1 |
|
BTmag |
11.654 |
|
E BTmag |
0.078 |
|
VTmag |
10.226 |
|
E VTmag |
0.040 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
42910 |
|
CCDM |
AB |
|
RAdeg |
131.17081611 |
|
DEdeg |
-21.43000833 |
|
EpRA 1990 |
1.60 |
|
EpDE 1990 |
1.45 |
|
E RAdeg |
29.1 |
|
E DEdeg |
37.0 |
|
Posflg |
|
|
Corr |
0.2 |
|
Catalog |
H |
|
HIP |
42910 |
|
Proxy |
H |
|
RAhms |
08 44 41.00 |
|
DEdms |
-21 25 48.0 |
|
Vmag |
10.16 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
131.171 |
|
DEdeg |
-21.43 |
|
AstroRef |
A |
|
Plx |
27.28 |
|
CCDM |
08447-2126 |
|
N CCDM |
H |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
D |
|
M HIP |
AB |
|
Theta |
266 |
|
Rho |
0.792 |
|
HD |
|
|
BD |
BD-20 2665 |
|
CD |
|
|
CP |
|
|
Dm number |
-20 2665 |
|
VIred |
1.18 |
|
SpType |
K7V |
|
R SpType |
|
|
Coord arcsec 2000 |
084441.00-212548.0 |
|
HIP |
42910 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
2.2893627355 |
|
DErad |
-0.3740241141 |
|
Plx |
27.45 |
|
PmRA |
-4.83 |
|
PmDE |
-20.17 |
|
E RArad |
1.36 |
|
E DErad |
1.11 |
|
E Plx |
1.91 |
|
E pmRA |
1.45 |
|
E pmDE |
1.2 |
|
Hpmag |
10.2661 |
|
E Hpmag |
0.0038 |
|
SHp |
0.029 |
|
VA |
0 |
|
BV |
1.225 |
|
E BV |
0.015 |
|
VI |
1.18 |
|
Ccdm |
08447-2126 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-1.00 |
|
DDEs |
11.8 |
|
R dRAs |
82 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
10.3 |
|
Sp |
K7 |
|
PmNote |
* |
|
PmRA |
-5 |
|
PmDE |
-21 |
|
Dm number |
-20 2665 |
|
Cat1 |
BD |
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
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N IDS |
|
|
IDS |
|
|
HIC |
42910 |
|
08447-2126 B
Coord arcsec 2000 |
084441.00-212548.0 |
|
Coord calc |
084441.00-212548.0 |
|
Mag |
10.9 |
|
Spectral class |
K7V (yellow-orange) |
|
PmRA |
-5.00 |
|
PmDE |
-20.0 |
|
Calc delta mag |
0.59 |
|
Ccdm |
08447-2126 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
HDS |
|
DRAs |
-1.06 |
|
DDEs |
11.8 |
|
R dRAs |
82 |
|
Year |
1991 |
|
Theta |
266 |
|
Rho |
0.8 |
|
Obs |
1 |
|
Vmag |
13.8 |
|
Sp |
|
|
PmNote |
* |
|
PmRA |
-5 |
|
PmDE |
-21 |
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
|
|
HIC |
42910 |
|
08447-2126 C
Coord arcsec 2000 |
084441.00-212548.6 |
|
Mag |
11 |
|
Calc delta mag |
0.69 |
|
Calc coord |
yes |
|