18126+1224 HDS 2570 (HD 166976)
18h 12m 35.69s +12° 23' 36.9" P.A. 352.00 sep 0.1 mag 8.04,8.88 Sp F0III+A6V dist. 226.24 pc (737.99 l.y.)
Coord 2000 |
18126+1224 |
|
Discov num |
HDS2570 |
|
Comp |
|
|
Coord arcsec 2000 |
18 12 35.69 +12 23 36.9 |
|
Date first |
1991 |
|
Date last |
2021 |
|
Obs |
8 |
|
Pa first |
139 |
|
Pa last |
352.4 |
|
P.A. Now (θ) |
352.4° |
|
Sep first |
0.2 |
|
Sep last |
0.062 |
|
Sep. Now (ρ) |
0.062" |
|
Mag pri |
8.04 |
|
Mag sec |
8.88 |
|
delta mag (ΔM) |
0.84 |
|
Spectral class |
F0III+A6V (yellow-white/white) |
|
Pri motion ra |
+006 |
|
Sec motion ra |
|
|
Pri motion dec |
+002 |
|
Sec motion dec |
|
|
Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 166976 |
|
Constellation |
Ophiuchus |
|
SAO |
103481 |
|
HIP |
89235 |
|
Tycho2 |
1017-01625-1 |
|
Gaia DR2 |
4496880653555218176 |
|
HD |
166976 |
|
BD |
BD+12 3422 |
|
Distance |
226.24 |
|
Distance ly |
737.99 |
|
ORBITAL ELEMENTS
Period (P) | 85y | |
Periastron (T) | 2009.87y | |
Semi-major axis (a) | 0.158a | |
Eccentricity (e) | 0.45 | |
Inclination (i) | 73° | |
Longitude of periastron (ω) | 149.6° | |
Node (Ω) | 132.2° | |
Notes | | |
Reference | Tok2020g | |
Equinox | 2000 | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
156.8 |
0.076 |
2001 |
162.5 |
0.063 |
2002 |
171.1 |
0.051 |
2003 |
184.8 |
0.040 |
2004 |
207.1 |
0.032 |
2005 |
237.1 |
0.030 |
2006 |
263.3 |
0.036 |
2007 |
280.2 |
0.046 |
2008 |
290.7 |
0.057 |
2009 |
297.8 |
0.068 |
2010 |
303.1 |
0.077 |
2011 |
307.3 |
0.084 |
2012 |
310.9 |
0.089 |
2013 |
314.3 |
0.092 |
2014 |
317.5 |
0.093 |
2015 |
320.7 |
0.091 |
2016 |
324.1 |
0.088 |
2017 |
327.8 |
0.084 |
2018 |
332.0 |
0.079 |
2019 |
336.7 |
0.073 |
2020 |
342.3 |
0.068 |
2021 |
348.9 |
0.062 |
2022 |
356.9 |
0.056 |
2023 |
6.4 |
0.052 |
2024 |
17.4 |
0.049 |
2025 |
29.5 |
0.047 |
2026 |
41.8 |
0.048 |
2027 |
53.5 |
0.050 |
2028 |
63.8 |
0.054 |
2029 |
72.4 |
0.059 |
2030 |
79.6 |
0.065 |
|
|
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 |
|
WDS 18126+1224 HDS 2570 (HD 166976) : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
Tok2020g |
orb - |
Tokovinin, A. |
2020IAUDS.201....1A |
Tok2020g |
|
Inf. Circ. 201, 1, 2020 |
|
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 |
18126+1224 |
HDS2570 |
|
1991 |
1 |
139 |
0.2 |
8.04 |
8.88 |
F0 |
|
181235.69+122336.9 |
18126+1224 |
HDS2570 |
|
2002 |
2 |
102 |
0.2 |
8.04 |
8.88 |
F0 |
|
181235.69+122336.9 |
18126+1224 |
HDS2570 |
|
2015 |
2 |
321 |
0.1 |
8.04 |
8.88 |
F0 |
|
181235.69+122336.9 |
18126+1224 |
HDS2570 |
|
2017 |
3 |
331 |
0.1 |
8.04 |
8.88 |
F0 |
|
181235.69+122336.9 |
18126+1224 |
HDS2570 |
|
2018 |
4 |
333 |
0.1 |
8.04 |
8.88 |
F0 |
|
181235.69+122336.9 |
18126+1224 |
HDS2570 |
|
2019 |
5 |
339 |
0.1 |
8.04 |
8.88 |
F0 |
|
181235.69+122336.9 |
18126+1224 |
HDS2570 |
|
2021 |
7 |
352 |
0.1 |
8.04 |
8.88 |
F0 |
O |
181235.69+122336.9 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18126+1224 HDS 2570 (HD 166976) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18126+1224 HDS 2570 (HD 166976) : MEASURES
No records found.
WDS 18126+1224 (HD 166976) : 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 18126+1224 (HD 166976) : ALADIN DSS IMAGE @ 18h 12m 35.69s +12° 23' 36.9"
WDS 18126+1224 HDS 2570 (HD 166976) : 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 |
|
18126+1224 |
HDS2570 |
|
352 |
0.1 |
1 |
Show |
|
18126+1215 |
GWP2768 |
|
268 |
11.3 |
9 |
Show |
|
18116+1247 |
BRT1293 |
|
74 |
5.4 |
29 |
Show |
|
18128+1151 |
BPM 743 |
|
30 |
62.6 |
33 |
Show |
|
18141+1156 |
ROE 142 |
|
229 |
3.8 |
36 |
Show |
|
18109+1251 |
ROE 110 |
|
135 |
3.8 |
37 |
Show |
|
18118+1147 |
BPM 740 |
|
329 |
110.9 |
39 |
Show |
|
18106+1155 |
BPM 737 |
|
261 |
29.0 |
42 |
Show |
|
18148+1153 |
ROE 143 |
|
90 |
4.2 |
45 |
Show |
|
18095+1216 |
SKF1352 |
|
42 |
14.3 |
46 |
Show |
|
18130+1138 |
BPM 744 |
|
207 |
116.5 |
47 |
Show |
|
18115+1307 |
BPM 738 |
|
48 |
107.9 |
47 |
Show |
|
18155+1156 |
ROE 144 |
|
291 |
6.5 |
51 |
Show |
|
18117+1313 |
BRT1294 |
|
281 |
3.9 |
52 |
Show |
|
18096+1255 |
BPM 736 |
|
193 |
85.2 |
54 |
Show |
|
18141+1314 |
J 2122 |
|
329 |
5.6 |
56 |
Show |
|
18160+1201 |
BRT1295 |
|
127 |
4.5 |
56 |
Show |
|
18160+1158 |
TDT 765 |
|
172 |
1.0 |
57 |
Show |
|
18089+1239 |
TDT 708 |
|
83 |
1.0 |
57 |
Show |
|
18116+1126 |
BPM 739 |
|
309 |
46.0 |
60 |
Show |
|
18164+1201 |
BPM 752 |
|
162 |
98.5 |
61 |
Show |
|
18086+1245 |
HDS2556 |
|
124 |
0.5 |
63 |
Show |
|
18128+1329 |
BPM 742 |
|
173 |
102.2 |
66 |
Show |
|
18094+1311 |
HEI 558 |
|
142 |
2.7 |
66 |
Show |
|
18081+1232 |
BPM 727 |
|
203 |
43.6 |
67 |
Show |
|
18170+1204 |
HDS2582 |
|
88 |
0.1 |
68 |
Show |
|
18166+1145 |
TOB 282 |
|
319 |
12.4 |
70 |
Show |
|
18148+1327 |
HJ 1316 |
|
250 |
14.0 |
71 |
Show |
|
18076+1225 |
HEI 556 |
|
114 |
1.8 |
73 |
Show |
|
18143+1333 |
BPM 745 |
|
73 |
29.0 |
74 |
Show |
|
18076+1210 |
TDT 697 |
|
167 |
2.2 |
75 |
Show |
|
18126+1107 |
BPM 741 |
|
236 |
36.2 |
77 |
Show |
|
18130+1103 |
TOB 273 |
|
174 |
17.4 |
81 |
Show |
|
18163+1124 |
J 1270 |
|
39 |
2.8 |
81 |
Show |
|
18078+1304 |
H 5 74 |
|
140 |
42.7 |
82 |
Show |
|
18093+1329 |
STF2285 |
|
333 |
3.6 |
82 |
Show |
|
18174+1143 |
TOB 283 |
|
35 |
12.7 |
82 |
Show |
|
18150+1338 |
BPM 747 |
|
55 |
99.8 |
82 |
Show |
|
18131+1102 |
TOB 274 |
|
113 |
21.4 |
83 |
Show |
|
18083+1318 |
GWP2760 |
AB |
11 |
28.6 |
83 |
Show |
|
18083+1318 |
GWP2761 |
AC |
40 |
99.6 |
83 |
Show |
|
18083+1318 |
GWP2762 |
AD |
73 |
159.4 |
83 |
Show |
|
18182+1209 |
GWP2770 |
|
306 |
10.6 |
83 |
Show |
|
18085+1324 |
UC 3504 |
|
333 |
50.0 |
86 |
Show |
|
18096+1106 |
BPM 735 |
|
121 |
12.4 |
89 |
Show |
|
18132+1053 |
ROE 121 |
AB |
61 |
5.2 |
91 |
Show |
|
18132+1053 |
ROE 121 |
AC |
20 |
39.0 |
91 |
Show |
|
18093+1105 |
BPM 734 |
|
287 |
119.1 |
93 |
Show |
|
18081+1114 |
TDT 700 |
|
190 |
0.8 |
96 |
Show |
|
18078+1116 |
JMA 1 |
|
167 |
6.3 |
99 |
Show |
|
18061+1257 |
BPM 722 |
|
340 |
105.0 |
102 |
|
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WDS 18126+1224 : COMPONENTS
18126+1224 A
Componente originario normalizzato |
AB |
|
Name |
HD 166976 |
|
Coord arcsec 2000 |
181235.69+122336.9 |
|
Mag |
8.04 |
|
Spectral class |
F0III (yellow-white) |
|
PmRA |
6.00 |
|
PmDE |
2.0 |
|
SAO |
103481 |
|
HIP |
89235 |
|
Tycho2 |
1017-01625-1 |
|
HD |
166976 |
|
BD |
BD+12 3422 |
|
Tycho2 |
1017-01625-1 |
|
Pflag |
|
|
RAmdeg |
273.14871191 |
|
DEmdeg |
12.39358934 |
|
PmRA |
6.6 |
|
PmDE |
3.1 |
|
E RAmdeg |
5 |
|
E DEmdeg |
5 |
|
E pmRA |
1.0 |
|
E pmDE |
1.0 |
|
EpRAm |
1990.98 |
|
EpDEm |
1991.03 |
|
Num |
16 |
|
Q RAmdeg |
1.4 |
|
Q DEmdeg |
1.4 |
|
Q pmRA |
1.3 |
|
Q pmDE |
1.4 |
|
BTmag |
7.932 |
|
E BTmag |
0.016 |
|
VTmag |
7.591 |
|
E VTmag |
0.011 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
89235 |
|
CCDM |
AB |
|
RAdeg |
273.14869639 |
|
DEdeg |
12.39358222 |
|
EpRA 1990 |
1.57 |
|
EpDE 1990 |
1.52 |
|
E RAdeg |
4.5 |
|
E DEdeg |
4.6 |
|
Posflg |
P |
|
Corr |
0.1 |
|
SAO |
103481 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0007 |
|
DE1950 |
|
|
PmDE1950 |
-0.015 |
|
Vmag |
7.5 |
|
SpType |
F0 |
|
Double code |
|
|
Source |
29 |
|
CatNum |
6479 |
|
DM |
BD+12 3422 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
166976 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
4.75722597 |
|
DE1950rad |
0.21606362 |
|
PmRA2000 |
0.0008 |
|
PmDE2000 |
-0.015 |
|
Catalog |
H |
|
HIP |
89235 |
|
Proxy |
H |
|
RAhms |
18 12 35.69 |
|
DEdms |
+12 23 36.9 |
|
Vmag |
7.56 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
273.149 |
|
DEdeg |
12.3936 |
|
AstroRef |
* |
|
Plx |
4.12 |
|
CCDM |
18126+1224 |
|
N CCDM |
H |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
S |
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
139 |
|
Rho |
0.163 |
|
HD |
166976 |
|
BD |
BD+12 3422 |
|
CD |
|
|
CP |
|
|
Dm number |
+12 3422 |
|
VIred |
0.42 |
|
SpType |
F0 |
|
R SpType |
|
|
Coord arcsec 2000 |
181235.69+122336.9 |
|
HIP |
89235 |
|
Sn |
55 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
4.7673440496 |
|
DErad |
0.2163088439 |
|
Plx |
4.42 |
|
PmRA |
7.15 |
|
PmDE |
3.41 |
|
E RArad |
0.56 |
|
E DErad |
0.55 |
|
E Plx |
0.95 |
|
E pmRA |
0.8 |
|
E pmDE |
0.8 |
|
Hpmag |
7.628 |
|
E Hpmag |
0.0012 |
|
SHp |
0.011 |
|
VA |
0 |
|
BV |
0.358 |
|
E BV |
0.015 |
|
VI |
0.42 |
|
Ccdm |
18126+1224 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-0.31 |
|
DDEs |
-23.0 |
|
R dRAs |
82 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
8.0 |
|
Sp |
F0 |
|
PmNote |
* |
|
PmRA |
6 |
|
PmDE |
2 |
|
Dm number |
+12 3422 |
|
Cat1 |
BD |
|
Name2 |
+12 1915 |
|
Cat2 |
AGK2/3 |
|
HD |
166976 |
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
|
|
HIC |
89235 |
|
18126+1224 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
181235.69+122337.0 |
|
Mag |
8.88 |
|
Spectral class |
A6V (white) |
|
Calc delta mag |
0.84 |
|
Calc coord |
yes |
|
Ccdm |
18126+1224 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
HDS |
|
DRAs |
-0.30 |
|
DDEs |
-23.2 |
|
R dRAs |
82 |
|
Year |
1991 |
|
Theta |
139 |
|
Rho |
0.2 |
|
Obs |
1 |
|
Vmag |
8.9 |
|
Sp |
|
|
PmNote |
* |
|
PmRA |
6 |
|
PmDE |
2 |
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
|
|
HIC |
89235 |
|