19197-2836 B 433 AB (HD 180957)
19h 19m 39.44s -28° 36' 18.8" P.A. 276.00 sep 0.1 mag 9.89,10.08 Sp G1V dist. 119.05 pc (388.34 l.y.)
Coord 2000 |
19197-2836 |
|
Discov num |
B 433 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 19 39.44 -28 36 18.8 |
|
Date first |
1926 |
|
Date last |
2021 |
|
Obs |
14 |
|
Pa first |
174 |
|
Pa last |
276.1 |
|
P.A. Now (θ) |
276.1° |
|
Sep first |
0.4 |
|
Sep last |
0.135 |
|
Sep. Now (ρ) |
0.135" |
|
Mag pri |
9.89 |
|
Mag sec |
10.08 |
|
delta mag (ΔM) |
0.19 |
|
Spectral class |
G1V (yellow) |
|
Pri motion ra |
-017 |
|
Sec motion ra |
-017 |
|
Pri motion dec |
-027 |
|
Sec motion dec |
-027 |
|
Notes |
O
(Orbital solution) |
|
This double is physical.
19197-2836 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 180957 |
187969 |
19 19 39 -28 36 19 |
B 433 AB |
2021 |
14 |
276 |
0.1 |
9.89 |
10.08 |
0.19 |
Y |
<=== |
Show |
|
187969 |
19 19 39 -28 36 19 |
B 433 AC |
2021 |
4 |
54 |
2.6 |
10.00 |
13.60 |
3.60 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 180957 |
|
Constellation |
Sagittarius |
|
SAO |
187969 |
|
HIP |
94985 |
|
Tycho2 |
6887-01586-1 |
|
Gaia DR2 |
6759572538660355840 |
|
HD |
180957 |
|
ADS |
12299 |
|
CD |
CD-2815665 |
|
CP |
CP-28 6878 |
|
Distance |
119.05 |
|
Distance ly |
388.34 |
|
ORBITAL ELEMENTS
Period (P) | 250y | |
Periastron (T) | 2027.51y | |
Semi-major axis (a) | 0.441a | |
Eccentricity (e) | 0.458 | |
Inclination (i) | 57.2° | |
Longitude of periastron (ω) | 97.7° | |
Node (Ω) | 219.7° | |
Notes | | |
Reference | Tok2020e | |
Equinox | | |
Last observation | 2019 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
223.7 |
0.347 |
2001 |
224.9 |
0.340 |
2002 |
226.1 |
0.333 |
2003 |
227.3 |
0.325 |
2004 |
228.6 |
0.317 |
2005 |
230.0 |
0.309 |
2006 |
231.4 |
0.301 |
2007 |
233.0 |
0.292 |
2008 |
234.6 |
0.283 |
2009 |
236.4 |
0.273 |
2010 |
238.2 |
0.263 |
2011 |
240.3 |
0.253 |
2012 |
242.4 |
0.243 |
2013 |
244.8 |
0.233 |
2014 |
247.4 |
0.222 |
2015 |
250.3 |
0.211 |
2016 |
253.5 |
0.201 |
2017 |
257.0 |
0.190 |
2018 |
261.0 |
0.180 |
2019 |
265.4 |
0.170 |
2020 |
270.3 |
0.161 |
2021 |
275.8 |
0.152 |
2022 |
282.0 |
0.144 |
2023 |
288.8 |
0.138 |
2024 |
296.1 |
0.134 |
2025 |
303.8 |
0.131 |
2026 |
311.8 |
0.130 |
2027 |
319.7 |
0.131 |
2028 |
327.4 |
0.134 |
2029 |
334.7 |
0.139 |
2030 |
341.4 |
0.145 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 19197-2836 B 433 AB (HD 180957) : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
Tok2020e |
St j |
Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. |
2020AJ....160....7T |
Tok2020e |
+orb |
AJ 160, 7, 2020 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
B |
van den Bos, W.H. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
19197-2836 |
B 433 |
AB |
2017 |
12 |
257 |
0.2 |
9.89 |
10.08 |
G1V |
|
191939.44-283618.8 |
19197-2836 |
B 433 |
AB |
2019 |
13 |
269 |
0.2 |
9.89 |
10.08 |
G1V |
|
191939.44-283618.8 |
19197-2836 |
B 433 |
AB |
2021 |
14 |
276 |
0.1 |
9.89 |
10.08 |
G1V |
|
191939.44-283618.8 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 19197-2836 B 433 AB (HD 180957) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 19197-2836 B 433 AB (HD 180957) : MEASURES
No records found.
WDS 19197-2836 (HD 180957) : 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 19197-2836 (HD 180957) : ALADIN DSS IMAGE @ 19h 19m 39.44s -28° 36' 18.8"
WDS 19197-2836 B 433 AB (HD 180957) : 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 |
|
19197-2836 |
B 433 |
AB |
276 |
0.1 |
|
Show |
|
19197-2836 |
B 433 |
AC |
54 |
2.6 |
|
Show |
|
19197-2849 |
RST2101 |
|
147 |
1.2 |
14 |
Show |
|
19189-2814 |
HDS2733 |
|
317 |
0.6 |
25 |
Show |
|
19224-2858 |
RST2105 |
|
261 |
6.6 |
42 |
Show |
|
19179-2759 |
KPP4144 |
|
320 |
4.4 |
45 |
Show |
|
19231-2833 |
RSS 520 |
AB |
350 |
10.0 |
45 |
Show |
|
19231-2833 |
RSS 520 |
Aa,Ab |
157 |
0.4 |
45 |
Show |
|
19192-2751 |
B 432 |
|
13 |
8.0 |
46 |
Show |
|
19227-2859 |
MRA 22 |
|
351 |
1.0 |
47 |
Show |
|
19240-2842 |
DAW 111 |
|
274 |
1.3 |
58 |
Show |
|
19173-2747 |
LDS4807 |
|
217 |
101.1 |
58 |
Show |
|
19221-2931 |
SHY 753 |
AB |
227 |
435.7 |
64 |
Show |
|
19221-2931 |
TOK 423 |
Aa,Ab |
36 |
0.8 |
64 |
Show |
|
19166-2928 |
UC 3873 |
AB |
144 |
27.3 |
66 |
Show |
|
19166-2928 |
UC 3873 |
AC |
279 |
47.9 |
66 |
Show |
|
19174-2735 |
UC 3879 |
|
322 |
101.6 |
68 |
Show |
|
19246-2919 |
LDS5876 |
|
357 |
54.0 |
73 |
Show |
|
19208-2950 |
UC 3896 |
|
99 |
17.3 |
76 |
Show |
|
19165-2940 |
KPP4143 |
|
169 |
1.0 |
77 |
Show |
|
19252-2900 |
UC 3926 |
|
324 |
55.6 |
78 |
Show |
|
19253-2900 |
UC 3929 |
|
323 |
61.5 |
78 |
Show |
|
19144-2916 |
HDO 152 |
|
254 |
1.0 |
80 |
Show |
|
19251-2919 |
HJ 5113 |
|
148 |
9.8 |
83 |
Show |
|
19239-2939 |
HJ 5110 |
AB |
117 |
5.8 |
84 |
Show |
|
19239-2939 |
HJ 5110 |
Aa,Ab |
216 |
0.1 |
84 |
Show |
|
19225-3002 |
JSP 805 |
|
321 |
2.0 |
93 |
Show |
|
19212-2704 |
B 434 |
|
349 |
0.6 |
95 |
Show |
|
19145-2723 |
OCC 702 |
|
-1 |
0.1 |
101 |
Show |
|
19147-2719 |
COO 234 |
AB |
325 |
2.3 |
102 |
Show |
|
19147-2719 |
COO 234 |
AC |
55 |
63.1 |
102 |
Show |
|
19258-2733 |
RST2109 |
|
193 |
1.0 |
103 |
Show |
|
19131-2933 |
UC 3849 |
|
133 |
19.7 |
104 |
Show |
|
19263-2741 |
BAR 47 |
|
202 |
1.7 |
105 |
Show |
|
19118-2849 |
RST2093 |
|
171 |
1.5 |
105 |
Show |
|
19145-2713 |
UC 3861 |
|
167 |
36.7 |
108 |
Show |
|
19137-2724 |
OCC 120 |
|
-1 |
0.1 |
108 |
Show |
|
19123-2747 |
UC 3844 |
|
80 |
80.2 |
109 |
Show |
|
19279-2811 |
WJG 6 |
|
239 |
0.7 |
112 |
Show |
|
19279-2930 |
BU 423 |
|
127 |
1.2 |
121 |
Show |
|
19258-3006 |
I 1401 |
AB |
112 |
0.6 |
121 |
Show |
|
19258-3006 |
WSI 91 |
Ba,Bb |
58 |
0.1 |
121 |
Show |
|
19133-2707 |
UC 3850 |
|
125 |
31.2 |
123 |
Show |
|
19107-2746 |
RST2092 |
|
101 |
1.7 |
128 |
Show |
|
19101-2907 |
I 9005 |
|
244 |
3.3 |
130 |
Show |
|
19101-2755 |
RSS 514 |
|
317 |
10.0 |
133 |
Show |
|
19122-2702 |
SKF2074 |
|
106 |
8.3 |
137 |
Show |
|
19157-3043 |
UC 3869 |
|
210 |
20.2 |
137 |
Show |
|
19221-2619 |
UC 3906 |
|
89 |
29.8 |
141 |
Show |
|
19120-3016 |
RSS 515 |
|
311 |
10.0 |
142 |
Show |
|
19273-2656 |
OCC 746 |
|
-1 |
0.1 |
143 |
|
|
WDS 19197-2836 : COMPONENTS
|
A |
B |
B |
pa=276.9°
sep=0.12"
| |
C |
pa=50.3°
sep=2.37"
| pa=52.3°
sep=2.46"
|
19197-2836 A
Name |
HD 180957 |
|
Coord arcsec 2000 |
191939.44-283618.8 |
|
Mag |
9.89 |
|
Spectral class |
G1V (yellow) |
|
PmRA |
-17.00 |
|
PmDE |
-27.0 |
|
SAO |
187969 |
|
HIP |
94985 |
|
Tycho2 |
6887-01586-1 |
|
HD |
180957 |
|
CD |
CD-2815665 |
|
CP |
CP-28 6878 |
|
Tycho2 |
6887-01586-1 |
|
Pflag |
|
|
RAmdeg |
289.91430473 |
|
DEmdeg |
-28.60526053 |
|
PmRA |
-17.1 |
|
PmDE |
-26.9 |
|
E RAmdeg |
18 |
|
E DEmdeg |
18 |
|
E pmRA |
1.7 |
|
E pmDE |
1.6 |
|
EpRAm |
1988.26 |
|
EpDEm |
1986.89 |
|
Num |
6 |
|
Q RAmdeg |
1.0 |
|
Q DEmdeg |
1.1 |
|
Q pmRA |
1.1 |
|
Q pmDE |
1.1 |
|
BTmag |
9.953 |
|
E BTmag |
0.034 |
|
VTmag |
9.324 |
|
E VTmag |
0.028 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
94985 |
|
CCDM |
AB |
|
RAdeg |
289.91434861 |
|
DEdeg |
-28.60519694 |
|
EpRA 1990 |
1.68 |
|
EpDE 1990 |
1.57 |
|
E RAdeg |
18.5 |
|
E DEdeg |
19.7 |
|
Posflg |
P |
|
Corr |
0.0 |
|
SAO |
187969 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0032 |
|
DE1950 |
|
|
PmDE1950 |
-0.022 |
|
Vmag |
8.8 |
|
SpType |
G0 |
|
Double code |
|
|
Source |
24 |
|
CatNum |
12634 |
|
DM |
CD-2815665 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
180957 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
5.04627724 |
|
DE1950rad |
-0.50087214 |
|
PmRA2000 |
-0.0033 |
|
PmDE2000 |
-0.023 |
|
Catalog |
H |
|
HIP |
94985 |
|
Proxy |
H |
|
RAhms |
19 19 39.45 |
|
DEdms |
-28 36 18.6 |
|
Vmag |
9.2 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
289.914 |
|
DEdeg |
-28.6052 |
|
AstroRef |
A |
|
Plx |
8.49 |
|
CCDM |
19197-2836 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
214 |
|
Rho |
0.394 |
|
HD |
180957 |
|
BD |
|
|
CD |
CD-2815665 |
|
CP |
CP-28 6878 |
|
Dm number |
-2815665 |
|
VIred |
0.64 |
|
SpType |
G1V |
|
R SpType |
|
|
Coord arcsec 2000 |
191939.45-283618.6 |
|
HIP |
94985 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
5.0599603709 |
|
DErad |
-0.4992541699 |
|
Plx |
8.4 |
|
PmRA |
-23.67 |
|
PmDE |
-31.89 |
|
E RArad |
1.88 |
|
E DErad |
1.59 |
|
E Plx |
1.83 |
|
E pmRA |
2 |
|
E pmDE |
1.65 |
|
Hpmag |
9.3321 |
|
E Hpmag |
0.0037 |
|
SHp |
0.02 |
|
VA |
0 |
|
BV |
0.605 |
|
E BV |
0.034 |
|
VI |
0.67 |
|
Ccdm |
19197-2836 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-2.69 |
|
DDEs |
-18.5 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
9.6 |
|
Sp |
G0 |
|
PmNote |
* |
|
PmRA |
-42 |
|
PmDE |
-22 |
|
Dm number |
-2815665 |
|
Cat1 |
CD |
|
Name2 |
187969 |
|
Cat2 |
SAO |
|
HD |
180957 |
|
M HD |
|
|
ADS BDS |
A12299 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
19134S2847A |
|
HIC |
94985 |
|
19197-2836 B
Coord arcsec 2000 |
191939.43-283618.8 |
|
Mag |
10.08 |
|
PmRA |
-17.00 |
|
PmDE |
-27.0 |
|
Calc delta mag |
0.19 |
|
Calc coord |
yes |
|
Ccdm |
19197-2836 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
B 433 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1926 |
|
Theta |
176 |
|
Rho |
0.4 |
|
Obs |
3 |
|
Vmag |
9.9 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A12299 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
19134S2847B |
|
HIC |
94985 |
|
19197-2836 C
Coord arcsec 2000 |
191939.58-283617.3 |
|
Mag |
13.6 |
|
Calc delta mag |
3.71 |
|
Calc coord |
yes |
|