18455+0530 STF 2375 AB (HD 173495)
18h 45m 28.36s +05° 30' 00.4" P.A. 120.00 sep 2.6 mag 6.34,6.73 Sp A1V dist. 188.68 pc (615.47 l.y.)
Coord 2000 |
18455+0530 |
|
Discov num |
STF2375 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 45 28.36 +05 30 00.4 |
|
Date first |
1825 |
|
Date last |
2019 |
|
Obs |
307 |
|
Pa first |
108 |
|
Pa last |
119.6 |
|
P.A. Now (θ) |
119.6° |
|
Sep first |
2.2 |
|
Sep last |
2.593 |
|
Sep. Now (ρ) |
2.593" |
|
Mag pri |
6.34 |
|
Mag sec |
6.73 |
|
delta mag (ΔM) |
0.39 |
|
Spectral class |
A1V (white) |
|
Pri motion ra |
+009 |
|
Sec motion ra |
+009 |
|
Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
Notes |
N
O
V
(See Notes, Orbital solution, Proper motion indicates physical) |
|
This double is physical.
18455+0530 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
123886 |
18 45 28 +05 30 00 |
FIN 332 Aa,Ab |
2021 |
75 |
142 |
0.0 |
6.91 |
7.31 |
0.40 |
Y |
|
Show |
HD 173495 |
123886 |
18 45 28 +05 30 00 |
STF 2375 AB |
2019 |
307 |
120 |
2.6 |
6.34 |
6.73 |
0.39 |
Y |
<=== |
Show |
|
123886 |
18 45 28 +05 30 00 |
FIN 332 Ba,Bb |
2021 |
58 |
324 |
0.1 |
7.48 |
7.48 |
0.00 |
Y |
|
Quadruple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 173495 |
|
Constellation |
Serpens |
|
SAO |
123886 |
|
HIP |
92027 |
|
Tycho2 |
0456-01022-2 |
|
Gaia DR2 |
4285283042432285568 |
|
HD |
173495 |
|
HR |
7048 |
|
GC |
25674 |
|
ADS |
11640 |
|
BD |
BD+05 3941 |
|
Distance |
188.68 |
|
Distance ly |
615.47 |
|
ORBITAL ELEMENTS
Period (P) | 5000y | |
Periastron (T) | 557y | |
Semi-major axis (a) | 3.64a | |
Eccentricity (e) | 0.5 | |
Inclination (i) | 64.5° | |
Longitude of periastron (ω) | 143.4° | |
Node (Ω) | 167.5° | |
Notes | n | |
Reference | Tok2020k | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
119.5 |
2.555 |
2001 |
119.5 |
2.557 |
2002 |
119.6 |
2.559 |
2003 |
119.6 |
2.561 |
2004 |
119.7 |
2.564 |
2005 |
119.7 |
2.566 |
2006 |
119.8 |
2.568 |
2007 |
119.8 |
2.571 |
2008 |
119.9 |
2.573 |
2009 |
120.0 |
2.575 |
2010 |
120.0 |
2.578 |
2011 |
120.1 |
2.580 |
2012 |
120.1 |
2.582 |
2013 |
120.2 |
2.585 |
2014 |
120.2 |
2.587 |
2015 |
120.3 |
2.589 |
2016 |
120.3 |
2.592 |
2017 |
120.4 |
2.594 |
2018 |
120.4 |
2.596 |
2019 |
120.5 |
2.598 |
2020 |
120.5 |
2.601 |
2021 |
120.6 |
2.603 |
2022 |
120.6 |
2.605 |
2023 |
120.7 |
2.608 |
2024 |
120.7 |
2.610 |
2025 |
120.8 |
2.612 |
2026 |
120.9 |
2.615 |
2027 |
120.9 |
2.617 |
2028 |
121.0 |
2.619 |
2029 |
121.0 |
2.622 |
2030 |
121.1 |
2.624 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 18455+0530 STF 2375 AB (HD 173495) : NOTES
discov_num |
notes |
refcode |
STF2375 |
This remarkable quadruple system is comprised of two close (0".14) |
|
|
pairs of similar position angle, discovered by Finsen with his |
Fin1953c |
|
eyepiece interferometer. Our 1982 observations (McAlister et al. |
McA1987b |
|
1987) were made at lower magnification and included all four stars in |
|
|
the field. The resulting overlapping autocorrelation peaks precluded |
|
|
measurement of the Aab or Bab pairs directly, but did permit measures |
|
|
of the AB; Aa,Bb; and Ab,Ba configurations. In later observations |
|
|
made at higher magnification we observed the A and B components |
|
|
separately, enabling measurement of Aa,Ab and Ba,Bb but not AB. |
|
|
Listed in the first speckle catalogue as STF 2375 AB,CD. |
McA1984b |
FIN 332 |
Aa,Ab: Listed in the first speckle catalogue as Fin 332 AB. |
McA1984b |
FIN 332 |
Ba,Bb: Listed in the first speckle catalogue as Fin 332 CD. |
McA1984b |
REFERENCES
refcode |
metd |
author |
reference |
Fin1953c |
J - |
Finsen, W.S. |
1953MNSSA..12...86F |
Fin1953c |
|
MNASSA 12, 86, 1953 |
|
McA1984b |
Sc j |
McAlister, H.A. & Hartkopf, W.I. |
................... |
McA1984b |
|
Catalog of Interferometric Measurements of Binary Stars, CHARA Contrib. #1, 1984 |
|
McA1984b |
|
(previously unpublished KPNO 2.1m and 3.8m data) |
|
McA1987b |
Sc j |
McAlister, H.A., Hartkopf, W.I., Hutter, D.J., & Franz, O.G. |
1987AJ.....93..688M |
McA1987b |
|
AJ 93, 688, 1987 |
|
Tok2020k |
orb - |
Tokovinin, A. |
2020AstL...46..612T |
Tok2020k |
|
Ast. Lett. 46, 612, 2020 |
|
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 |
18455+0530 |
STF2375 |
AB |
2007 |
291 |
120 |
2.5 |
6.34 |
6.73 |
|
N D |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2009 |
295 |
119 |
2.5 |
6.34 |
6.73 |
|
N D |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2010 |
312 |
121 |
2.6 |
6.34 |
6.73 |
|
N D |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2012 |
319 |
120 |
2.4 |
6.34 |
6.73 |
|
N D |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2013 |
322 |
120 |
2.6 |
6.34 |
6.73 |
A1V |
N D |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2014 |
294 |
122 |
2.4 |
6.34 |
6.73 |
A1V |
N D |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2015 |
296 |
120 |
2.5 |
6.34 |
6.73 |
A1V |
N |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2016 |
300 |
121 |
2.4 |
6.34 |
6.73 |
A1V |
N |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2017 |
302 |
121 |
2.5 |
6.34 |
6.73 |
A1V |
NV |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2018 |
304 |
121 |
2.6 |
6.34 |
6.73 |
A1V |
NV |
184528.36+053000.4 |
18455+0530 |
STF2375 |
AB |
2019 |
305 |
120 |
2.6 |
6.34 |
6.73 |
A1V |
NV |
184528.36+053000.4 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18455+0530 STF 2375 AB (HD 173495) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18455+0530 STF 2375 AB (HD 173495) : MEASURES
No records found.
WDS 18455+0530 (HD 173495) : 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 18455+0530 (HD 173495) : ALADIN DSS IMAGE @ 18h 45m 28.36s +05° 30' 00.4"
WDS 18455+0530 STF 2375 AB (HD 173495) : 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 |
|
18455+0530 |
FIN 332 |
Aa,Ab |
142 |
0.0 |
|
Show |
|
18455+0530 |
STF2375 |
AB |
120 |
2.6 |
|
Show |
|
18455+0530 |
FIN 332 |
Ba,Bb |
324 |
0.1 |
|
Show |
|
18437+0539 |
STT 361 |
|
172 |
22.6 |
28 |
Show |
|
18465+0504 |
KPP4120 |
|
1 |
1.8 |
31 |
Show |
|
18429+0545 |
BU 136 |
|
7 |
4.6 |
42 |
Show |
|
18428+0541 |
TOK 324 |
|
246 |
222.4 |
42 |
Show |
|
18433+0502 |
J 527 |
|
40 |
3.2 |
43 |
Show |
|
18454+0444 |
BAL2935 |
|
161 |
5.8 |
46 |
Show |
|
18425+0518 |
TDT1014 |
|
339 |
0.7 |
46 |
Show |
|
18427+0556 |
WOL 3 |
AB |
307 |
2.5 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AC |
163 |
3.1 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AD |
223 |
4.1 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AE |
217 |
7.6 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AF |
56 |
8.0 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AG |
263 |
8.8 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AH |
5 |
10.4 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AI |
113 |
10.8 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AJ |
211 |
11.0 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AK |
159 |
11.3 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AL |
119 |
11.4 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AM |
206 |
11.7 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AN |
104 |
12.0 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AO |
235 |
12.0 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AP |
256 |
12.3 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AQ |
178 |
12.8 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AR |
13 |
12.8 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AS |
4 |
13.4 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AT |
293 |
13.5 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AU |
94 |
14.5 |
49 |
Show |
|
18427+0556 |
CRT 11 |
AV |
102 |
14.8 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wa |
31 |
16.1 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wb |
164 |
16.4 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wc |
311 |
16.5 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wd |
237 |
16.7 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,We |
177 |
17.4 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wf |
50 |
17.6 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wg |
26 |
18.0 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wh |
221 |
18.2 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wi |
233 |
18.4 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wj |
77 |
18.8 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wk |
62 |
18.9 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wl |
292 |
18.9 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wm |
31 |
19.6 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wn |
120 |
19.6 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wo |
315 |
19.7 |
49 |
Show |
|
18427+0556 |
CRT 11 |
A,Wp |
332 |
20.0 |
49 |
Show |
|
18468+0443 |
TDT1051 |
|
168 |
1.6 |
52 |
Show |
|
18436+0444 |
A 357 |
|
71 |
0.6 |
54 |
Show |
|
18431+0612 |
CRT 9 |
AB |
271 |
4.4 |
55 |
Show |
|
18431+0612 |
CRT 9 |
AC |
258 |
4.6 |
55 |
|
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WDS 18455+0530 : COMPONENTS
|
A |
Ab |
B |
Ab |
pa=141.8°
sep=0.01"
| |
B |
pa=0.0°
sep=0.00"
| pa=321.8°
sep=0.01"
| |
Bb |
pa=324.5°
sep=0.12"
| pa=324.3°
sep=0.14"
| pa=324.5°
sep=0.12"
|
18455+0530 A
Name |
HD 173495 |
|
Coord arcsec 2000 |
184528.36+053000.4 |
|
Mag |
6.34 |
|
Spectral class |
A1V (white) |
|
PmRA |
9.00 |
|
PmDE |
-3.0 |
|
SAO |
123886 |
|
HIP |
92027 |
|
Tycho2 |
0456-01022-2 |
|
HD |
173495 |
|
HR |
7048 |
|
GC |
25674 |
|
ADS |
11640 |
|
BD |
BD+05 3941 |
|
Tycho2 |
0456-01022-2 |
|
Pflag |
P |
|
RAmdeg |
281.36838204 |
|
DEmdeg |
5.50000042 |
|
PmRA |
9.4 |
|
PmDE |
-2.5 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
E pmRA |
2.0 |
|
E pmDE |
1.9 |
|
EpRAm |
1991.76 |
|
EpDEm |
1991.68 |
|
Num |
5 |
|
Q RAmdeg |
1.5 |
|
Q DEmdeg |
0.5 |
|
Q pmRA |
1.5 |
|
Q pmDE |
0.5 |
|
BTmag |
6.375 |
|
E BTmag |
0.014 |
|
VTmag |
6.338 |
|
E VTmag |
0.010 |
|
Prox |
25 |
|
TYC |
T |
|
HIP |
92027 |
|
CCDM |
A |
|
RAdeg |
281.36815306 |
|
DEdeg |
5.50012167 |
|
EpRA 1990 |
1.82 |
|
EpDE 1990 |
1.74 |
|
E RAdeg |
3.8 |
|
E DEdeg |
4.2 |
|
Posflg |
D |
|
Corr |
0.1 |
|
SAO |
123886 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0008 |
|
DE1950 |
|
|
PmDE1950 |
-0.01 |
|
Vmag |
5.7 |
|
SpType |
A0 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
25674 |
|
DM |
BD+05 3941 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
173495 |
|
M HD |
0 |
|
GC |
25674 |
|
RA1950rad |
4.90007521 |
|
DE1950rad |
0.09505659 |
|
PmRA2000 |
0.001 |
|
PmDE2000 |
-0.011 |
|
Catalog |
H |
|
HIP |
92027 |
|
Proxy |
H |
|
RAhms |
18 45 28.36 |
|
DEdms |
+05 30 00.4 |
|
Vmag |
5.82 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
281.368 |
|
DEdeg |
5.50012 |
|
AstroRef |
A |
|
Plx |
4.6 |
|
CCDM |
18455+0530 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
3 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
B |
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
173495 |
|
BD |
BD+05 3941 |
|
CD |
|
|
CP |
|
|
Dm number |
+05 3941 |
|
VIred |
0.06 |
|
SpType |
A1V |
|
R SpType |
|
|
Coord arcsec 2000 |
184528.36+053000.4 |
|
HIP |
92027 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
3 |
|
RArad |
4.9108006148 |
|
DErad |
0.0959952549 |
|
Plx |
5.3 |
|
PmRA |
14.32 |
|
PmDE |
0.16 |
|
E RArad |
0.72 |
|
E DErad |
0.64 |
|
E Plx |
0.85 |
|
E pmRA |
1.04 |
|
E pmDE |
0.87 |
|
Hpmag |
5.8291 |
|
E Hpmag |
0.0008 |
|
SHp |
0.005 |
|
VA |
0 |
|
BV |
0.041 |
|
E BV |
0.006 |
|
VI |
0.06 |
|
Ccdm |
18455+0530 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-1.55 |
|
DDEs |
0.0 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
4 |
|
Vmag |
6.5 |
|
Sp |
A0 |
|
PmNote |
* |
|
PmRA |
27 |
|
PmDE |
-1 |
|
Dm number |
+05 3941 |
|
Cat1 |
BD |
|
Name2 |
+05 2590 |
|
Cat2 |
AGK2/3 |
|
HD |
173495 |
|
M HD |
|
|
ADS BDS |
A11640 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18406N0524A |
|
HIC |
92027 |
|
18455+0530 Ab
Coord arcsec 2000 |
184528.36+053000.4 |
|
Mag |
7.31 |
|
Spectral class |
A1V (white) |
|
Calc delta mag |
0.4 |
|
Calc coord |
yes |
|
18455+0530 B
Coord arcsec 2000 |
184528.36+053000.4 |
|
Coord calc |
184528.51+052959.1 |
|
Mag |
7.48 |
|
Mag composta |
6.73 |
|
Spectral class |
A1V (white) |
|
PmRA |
9.00 |
|
PmDE |
-3.0 |
|
Calc delta mag |
0.57 |
|
18455+0530 Bb
Coord arcsec 2000 |
184528.36+053000.5 |
|
Mag |
7.48 |
|
Spectral class |
... |
|
PmRA |
9.00 |
|
PmDE |
-3.0 |
|
Calc delta mag |
0.57 |
|
Calc coord |
yes |
|