18031-0811 STF 2262 AB (Tau Oph)
18h 03m 04.91s -08° 10' 48.9" P.A. 291.00 sep 1.4 mag 5.27,5.86 Sp F4IV+F5V dist. 51.33 pc (167.44 l.y.)
Coord 2000 |
18031-0811 |
|
Discov num |
STF2262 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 03 04.91 -08 10 48.9 |
|
Date first |
1835 |
|
Date last |
2021 |
|
Obs |
665 |
|
Pa first |
193 |
|
Pa last |
291 |
|
P.A. Now (θ) |
290.9° |
|
Sep first |
0.4 |
|
Sep last |
1.449 |
|
Sep. Now (ρ) |
1.427" |
|
Mag pri |
5.27 |
|
Mag sec |
5.86 |
|
delta mag (ΔM) |
0.59 |
|
Spectral class |
F4IV+F5V (yellow-white/yellow-white) |
|
Pri motion ra |
+009 |
|
Sec motion ra |
+009 |
|
Pri motion dec |
-048 |
|
Sec motion dec |
-048 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
18031-0811 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
Tau Oph |
142050 |
18 03 05 -08 10 49 |
STF 2262 AB |
2021 |
665 |
291 |
1.4 |
5.27 |
5.86 |
0.59 |
Y |
<=== |
Show |
|
142050 |
18 03 05 -08 10 49 |
STF 2262 AC |
2000 |
13 |
125 |
100.8 |
5.27 |
11.28 |
6.01 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
Tau Oph |
|
Var name |
NSV10073 Oph |
|
Constellation |
Ophiuchus |
|
SAO |
142050 |
|
HIP |
88404 |
|
Tycho2 |
5675-00662-1 |
|
Gaia DR2 |
4170583776094715520 |
|
HD |
164764 |
|
HR |
6733 |
|
GC |
24565 |
|
ADS |
11005 |
|
GL |
Gl 700.1B |
|
BD |
BD-08 4549 |
|
Bayer |
Tau Ophiuchi |
|
Bayer name |
Tau Oph |
|
Flamsteed |
69 Ophiuchi |
|
Flamsteed name |
69 Oph |
|
Distance |
51.33 |
|
Distance ly |
167.44 |
|
Bayer greek |
τ Oph |
|
ORBITAL ELEMENTS
Period (P) | 257y | |
Periastron (T) | 1829y | |
Semi-major axis (a) | 1.4a | |
Eccentricity (e) | 0.77 | |
Inclination (i) | 52° | |
Longitude of periastron (ω) | 42° | |
Node (Ω) | 60° | |
Notes | n | |
Reference | Sod1999 | |
Equinox | 2000 | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
281.1 |
1.751 |
2001 |
281.5 |
1.739 |
2002 |
281.8 |
1.726 |
2003 |
282.2 |
1.714 |
2004 |
282.5 |
1.701 |
2005 |
282.9 |
1.688 |
2006 |
283.3 |
1.675 |
2007 |
283.7 |
1.662 |
2008 |
284.1 |
1.649 |
2009 |
284.5 |
1.635 |
2010 |
284.9 |
1.621 |
2011 |
285.3 |
1.607 |
2012 |
285.7 |
1.593 |
2013 |
286.2 |
1.579 |
2014 |
286.6 |
1.564 |
2015 |
287.0 |
1.550 |
2016 |
287.5 |
1.535 |
2017 |
287.9 |
1.520 |
2018 |
288.4 |
1.505 |
2019 |
288.9 |
1.490 |
2020 |
289.4 |
1.474 |
2021 |
289.9 |
1.459 |
2022 |
290.4 |
1.443 |
2023 |
290.9 |
1.427 |
2024 |
291.5 |
1.411 |
2025 |
292.0 |
1.395 |
2026 |
292.6 |
1.378 |
2027 |
293.2 |
1.362 |
2028 |
293.7 |
1.345 |
2029 |
294.3 |
1.328 |
2030 |
295.0 |
1.311 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 18031-0811 STF 2262 AB (Tau Oph) : NOTES
discov_num |
notes |
refcode |
STF2262 |
tau Oph = 69 Oph. A is a SB. RV of the primary may be variable. |
Wrz1959 |
|
Primary giant according to isochrone fit. |
Sod1999 |
|
See Baize & Petit (1989) catalog of doubles with variable component. |
Baz1989d |
|
AB: H 1 88. |
MEv2010 |
REFERENCES
refcode |
metd |
author |
reference |
Baz1989d |
- |
Baize, P. & Petit, M. |
1989A&AS...77..497B |
Baz1989d |
|
A&AS 77, 497, 1989 |
|
MEv2010 |
- |
MacEvoy, B. |
................... |
MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
Sod1999 |
orb - |
Soderhjelm, S. |
1999A&A...341..121S |
Sod1999 |
|
A&A 341, 121, 1999 |
|
Wrz1959 |
orb - |
Wierzbinski, S. |
. |
Wrz1959 |
|
Bull. Amis Sci. Poznan 15, 171, 1959 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
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 |
18031-0811 |
STF2262 |
AB |
2006 |
662 |
285 |
1.6 |
5.27 |
5.86 |
F4IV F5V |
NOD |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2009 |
664 |
285 |
1.6 |
5.27 |
5.86 |
F4IV F5V |
NOD |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2010 |
675 |
286 |
1.5 |
5.27 |
5.86 |
F4IV F5V |
NOD |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2011 |
679 |
286 |
1.5 |
5.27 |
5.86 |
F4IV F5V |
NOD |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2012 |
682 |
287 |
1.5 |
5.27 |
5.86 |
F4IV F5V |
NOD |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2013 |
684 |
286 |
1.5 |
5.27 |
5.86 |
F4IV F5V |
NOD |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2014 |
633 |
288 |
1.6 |
5.27 |
5.86 |
F4IV F5V |
NOD |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2016 |
634 |
288 |
1.5 |
5.27 |
5.86 |
F4IV+F5V |
NO |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2017 |
638 |
290 |
1.5 |
5.27 |
5.86 |
F4IV+F5V |
NO |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2018 |
643 |
290 |
1.5 |
5.27 |
5.86 |
F4IV+F5V |
NO |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2019 |
658 |
290 |
1.5 |
5.27 |
5.86 |
F4IV+F5V |
NO |
180304.91-081048.9 |
18031-0811 |
STF2262 |
AB |
2021 |
664 |
291 |
1.4 |
5.27 |
5.86 |
F4IV+F5V |
NO |
180304.91-081048.9 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18031-0811 STF 2262 AB (Tau Oph) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18031-0811 STF 2262 AB (Tau Oph) : MEASURES
No records found.
WDS 18031-0811 (Tau Oph) : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 18031-0811 (Tau Oph) : ALADIN DSS IMAGE @ 18h 03m 04.91s -08° 10' 48.9"
WDS 18031-0811 STF 2262 AB (Tau Oph) : 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 |
|
18031-0811 |
STF2262 |
AB |
291 |
1.4 |
1 |
Show |
|
18031-0811 |
STF2262 |
AC |
125 |
100.8 |
1 |
Show |
|
18053-0823 |
J 1645 |
|
4 |
5.5 |
26 |
Show |
|
18060-0807 |
A 2595 |
|
45 |
2.9 |
44 |
Show |
|
18061-0819 |
HDS2551 |
|
91 |
0.1 |
46 |
Show |
|
17596-0820 |
GWP2751 |
|
127 |
23.6 |
53 |
Show |
|
18025-0719 |
RST3992 |
|
236 |
0.6 |
53 |
Show |
|
18007-0717 |
LDS 621 |
|
298 |
7.2 |
65 |
Show |
|
18004-0929 |
RST3990 |
|
93 |
2.4 |
88 |
Show |
|
18092-0817 |
RST3998 |
AB |
161 |
0.4 |
91 |
Show |
|
18092-0817 |
B 2856 |
AB,C |
123 |
11.9 |
91 |
Show |
|
17593-0651 |
STF2250 |
AB |
344 |
7.8 |
98 |
Show |
|
17593-0651 |
SIN 106 |
AC |
92 |
45.0 |
98 |
Show |
|
17589-0924 |
OSO 90 |
AB |
124 |
20.9 |
98 |
Show |
|
17589-0924 |
OSO 90 |
AC |
207 |
22.6 |
98 |
Show |
|
18096-0755 |
NSN 142 |
|
44 |
25.1 |
99 |
Show |
|
18081-0707 |
RST3997 |
|
82 |
1.3 |
99 |
Show |
|
18099-0755 |
HDS2561 |
|
16 |
0.9 |
103 |
Show |
|
17564-0845 |
RST3988 |
|
36 |
0.8 |
105 |
Show |
|
17550-0744 |
LLO 14 |
|
293 |
5.9 |
124 |
Show |
|
18009-1012 |
HU 236 |
|
156 |
0.2 |
126 |
Show |
|
18015-1014 |
BU 47 |
|
76 |
0.6 |
126 |
Show |
|
18086-0948 |
HDS2557 |
|
252 |
0.6 |
128 |
Show |
|
17587-0620 |
GWP2750 |
|
67 |
8.8 |
129 |
Show |
|
18013-0601 |
J 2511 |
|
74 |
4.7 |
130 |
Show |
|
18108-0710 |
RST3999 |
|
176 |
0.2 |
131 |
Show |
|
18010-1020 |
GWP2754 |
|
219 |
28.3 |
133 |
Show |
|
18008-0552 |
RST5546 |
AB |
130 |
1.0 |
148 |
Show |
|
18124-0718 |
A 36 |
A,BC |
40 |
70.1 |
149 |
Show |
|
18124-0718 |
A 36 |
BC |
207 |
1.3 |
150 |
Show |
|
17530-0755 |
STF3128 |
AB |
50 |
1.3 |
151 |
Show |
|
17530-0755 |
STF3128 |
AC |
86 |
97.1 |
151 |
Show |
|
18131-0747 |
RST4001 |
|
278 |
1.9 |
151 |
Show |
|
17531-0852 |
HDS2523 |
|
253 |
0.3 |
154 |
Show |
|
17527-0757 |
STF2234 |
|
198 |
16.9 |
155 |
Show |
|
18057-0537 |
J 3269 |
|
65 |
6.4 |
159 |
Show |
|
17589-1046 |
KPP1587 |
|
359 |
12.1 |
167 |
Show |
|
18099-1027 |
TSN 186 |
|
38 |
0.8 |
170 |
Show |
|
17599-0525 |
A 34 |
|
290 |
1.4 |
173 |
Show |
|
17525-0649 |
WFC 200 |
|
272 |
9.5 |
178 |
Show |
|
18120-0601 |
A 37 |
AB |
33 |
2.4 |
186 |
Show |
|
18154-0850 |
BRT 476 |
|
135 |
4.0 |
186 |
Show |
|
18034-1118 |
BRT2743 |
|
337 |
3.8 |
188 |
Show |
|
17591-0503 |
LSC 82 |
|
150 |
0.5 |
198 |
Show |
|
17526-0609 |
EVS 32 |
AB |
212 |
18.1 |
198 |
Show |
|
17526-0609 |
KRV 46 |
AC |
199 |
81.3 |
198 |
Show |
|
17533-0556 |
HO 561 |
|
328 |
35.4 |
200 |
Show |
|
18000-1133 |
HU 753 |
|
129 |
5.5 |
208 |
Show |
|
18063-0443 |
TDT 684 |
|
244 |
0.5 |
214 |
Show |
|
18114-0512 |
HO 267 |
|
353 |
14.5 |
218 |
Show |
|
17556-0503 |
RST5545 |
AB |
283 |
1.0 |
219 |
|
|
WDS 18031-0811 : COMPONENTS
|
A |
B |
B |
pa=291.2°
sep=1.44"
| |
C |
pa=125.7°
sep=100.11"
| pa=125.5°
sep=101.50"
|
18031-0811 A
Name |
Tau Oph |
|
Coord arcsec 2000 |
180304.91-081048.9 |
|
Mag |
5.27 |
|
Spectral class |
F4IV (yellow-white) |
|
PmRA |
9.00 |
|
PmDE |
-48.0 |
|
SAO |
142050 |
|
HIP |
88404 |
|
Tycho2 |
5675-00662-1 |
|
HD |
164764 |
|
HR |
6733 |
|
GC |
24565 |
|
BD |
BD-08 4549 |
|
Bayer |
Tau Ophiuchi |
|
Bayer name |
Tau |
|
Flamsteed |
69 Ophiuchi |
|
Flamsteed name |
69 Oph |
|
Tycho2 |
5675-00662-1 |
|
Pflag |
P |
|
RAmdeg |
270.77033367 |
|
DEmdeg |
-8.18034956 |
|
PmRA |
8.8 |
|
PmDE |
-48.4 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
E pmRA |
2.7 |
|
E pmDE |
2.7 |
|
EpRAm |
1991.90 |
|
EpDEm |
1991.77 |
|
Num |
3 |
|
Q RAmdeg |
0.8 |
|
Q DEmdeg |
4.5 |
|
Q pmRA |
0.8 |
|
Q pmDE |
4.6 |
|
BTmag |
5.695 |
|
E BTmag |
0.014 |
|
VTmag |
5.269 |
|
E VTmag |
0.009 |
|
Prox |
18 |
|
TYC |
T |
|
HIP |
88404 |
|
CCDM |
A |
|
RAdeg |
270.77046139 |
|
DEdeg |
-8.18026500 |
|
EpRA 1990 |
1.92 |
|
EpDE 1990 |
1.79 |
|
E RAdeg |
3.5 |
|
E DEdeg |
4.0 |
|
Posflg |
D |
|
Corr |
-0.1 |
|
SAO |
142050 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0017 |
|
DE1950 |
|
|
PmDE1950 |
-0.039 |
|
Vmag |
4.9 |
|
SpType |
F0 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
24565 |
|
DM |
BD-08 4549 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
164764 |
|
M HD |
9 |
|
GC |
24565 |
|
RA1950rad |
4.71395059 |
|
DE1950rad |
-0.14280227 |
|
PmRA2000 |
0.0019 |
|
PmDE2000 |
-0.037 |
|
Catalog |
H |
|
HIP |
88404 |
|
Proxy |
H |
|
RAhms |
18 03 04.91 |
|
DEdms |
-08 10 48.9 |
|
Vmag |
4.77 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
270.77 |
|
DEdeg |
-8.18026 |
|
AstroRef |
A |
|
Plx |
19.22 |
|
CCDM |
18031-0811 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
279 |
|
Rho |
1.803 |
|
HD |
164764 |
|
BD |
BD-08 4549 |
|
CD |
|
|
CP |
|
|
Dm number |
-08 4549 |
|
VIred |
0.45 |
|
SpType |
F5V+... |
|
R SpType |
|
|
Coord arcsec 2000 |
180304.91-081048.9 |
|
HIP |
88404 |
|
Sn |
17 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
4.7258360603 |
|
DErad |
-0.1427724316 |
|
Plx |
19.48 |
|
PmRA |
15.78 |
|
PmDE |
-37.79 |
|
E RArad |
0.72 |
|
E DErad |
0.44 |
|
E Plx |
0.66 |
|
E pmRA |
0.93 |
|
E pmDE |
0.51 |
|
Hpmag |
4.8588 |
|
E Hpmag |
0.0006 |
|
SHp |
0.005 |
|
VA |
0 |
|
BV |
0.41 |
|
E BV |
0.014 |
|
VI |
0.45 |
|
Ccdm |
18031-0811 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-1.03 |
|
DDEs |
10.5 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
3 |
|
Vmag |
5.3 |
|
Sp |
F0 |
|
PmNote |
* |
|
PmRA |
26 |
|
PmDE |
-40 |
|
Dm number |
-08 4549 |
|
Cat1 |
BD |
|
Name2 |
142050 |
|
Cat2 |
SAO |
|
HD |
164765 |
|
M HD |
|
|
ADS BDS |
A11005 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
17576S0811A |
|
HIC |
88404 |
|
18031-0811 B
Coord arcsec 2000 |
180304.82-081048.4 |
|
Mag |
5.86 |
|
Spectral class |
F5V (yellow-white) |
|
PmRA |
9.00 |
|
PmDE |
-48.0 |
|
Tycho2 |
5675-00662-2 |
|
HD |
164765 |
|
HR |
6734 |
|
Flamsteed |
69 Ophiuchi |
|
Flamsteed name |
69 Oph |
|
Calc delta mag |
0.59 |
|
Calc coord |
yes |
|
Tycho2 |
5675-00662-2 |
|
Pflag |
P |
|
RAmdeg |
270.77033367 |
|
DEmdeg |
-8.18034956 |
|
PmRA |
8.8 |
|
PmDE |
-48.4 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
E pmRA |
2.7 |
|
E pmDE |
2.7 |
|
EpRAm |
1991.90 |
|
EpDEm |
1991.77 |
|
Num |
3 |
|
Q RAmdeg |
0.8 |
|
Q DEmdeg |
4.5 |
|
Q pmRA |
0.8 |
|
Q pmDE |
4.6 |
|
BTmag |
6.271 |
|
E BTmag |
0.015 |
|
VTmag |
5.864 |
|
E VTmag |
0.010 |
|
Prox |
18 |
|
TYC |
|
|
HIP |
88404 |
|
CCDM |
B |
|
RAdeg |
270.76996417 |
|
DEdeg |
-8.18017833 |
|
EpRA 1990 |
1.92 |
|
EpDE 1990 |
1.79 |
|
E RAdeg |
3.7 |
|
E DEdeg |
4.3 |
|
Posflg |
D |
|
Corr |
-0.1 |
|
Ccdm |
18031-0811 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
* |
|
Note2 |
|
|
Discov num |
STF2262 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1836 |
|
Theta |
|
|
Rho |
|
|
Obs |
99 |
|
Vmag |
6.0 |
|
Sp |
F0 |
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
164764 |
|
M HD |
|
|
ADS BDS |
A11005 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
17576S0811B |
|
HIC |
88404 |
|
18031-0811 C
Coord arcsec 2000 |
180310.39-081147.3 |
|
Mag |
11.28 |
|
PmRA |
23.00 |
|
PmDE |
-18.0 |
|
Calc delta mag |
6.01 |
|
Calc coord |
yes |
|
Ccdm |
18031-0811 |
|
RComp |
|
|
Comp |
C |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
STF2262 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1879 |
|
Theta |
127 |
|
Rho |
100.3 |
|
Obs |
5 |
|
Vmag |
9.3 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A11005 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
17576S0811C |
|
HIC |
|
|