20099+2055 STF 2637 BC
20h 09m 56.25s +20° 55' 04.3" P.A. 215.00 sep 95.7 mag 8.85,7.52 Sp F2 dist. 44.62 pc (145.55 l.y.)
Coord 2000 |
20099+2055 |
|
Discov num |
STF2637 |
|
Comp |
BC |
|
Coord arcsec 2000 |
20 09 56.25 +20 55 04.3 |
|
Date first |
1800 |
|
Date last |
2017 |
|
Obs |
60 |
|
Pa first |
221 |
|
Pa last |
214.7 |
|
P.A. Now (θ) |
214.7° |
|
Sep first |
66.2 |
|
Sep last |
95.687 |
|
Sep. Now (ρ) |
95.687" |
|
Mag pri |
8.85 |
|
Mag sec |
7.52 |
|
delta mag (ΔM) |
1.33 |
|
Spectral class |
F2 (yellow-white) |
|
Pri motion ra |
+064 |
|
Sec motion ra |
+005 |
|
Pri motion dec |
+102 |
|
Sec motion dec |
-005 |
|
Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
rPM=1.015
This double is not physical.
20099+2055 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
The Sge |
88276 |
20 09 57 +20 54 53 |
STF 2637 AB |
2020 |
143 |
331 |
11.6 |
6.56 |
8.85 |
2.29 |
|
|
Show |
|
88276 |
20 09 57 +20 54 53 |
STF 2637 AC |
2020 |
97 |
222 |
91.9 |
6.56 |
7.52 |
0.96 |
|
|
Show |
|
88276 |
20 09 57 +20 54 53 |
STF 2637 AD |
2016 |
10 |
226 |
172.8 |
6.56 |
11.94 |
5.38 |
|
|
Show |
|
88270 |
20 09 56 +20 55 04 |
STF 2637 BC |
2017 |
60 |
215 |
95.7 |
8.85 |
7.52 |
1.33 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagitta |
|
SAO |
88270 |
|
HIP |
99351 |
|
Tycho2 |
1630-00917-1 |
|
Gaia DR2 |
1829590548393015168 |
|
HD |
191571 |
|
GC |
27982 |
|
DM |
BD+20 4452 |
|
Bayer |
Theta Sagittae |
|
Bayer name |
The Sge |
|
Flamsteed |
17 Sagittae |
|
Flamsteed name |
17 Sge |
|
Distance |
44.62 |
|
Distance ly |
145.55 |
|
Bayer greek |
θ Sge |
|
WDS 20099+2055 STF 2637 BC : NOTES
discov_num |
notes |
refcode |
STF2637 |
the Sge = 17 Sge. STTA201 = STFA 49. B is BD+20@4455. |
|
|
AC: Optical pair, based on study of relative motion of the components |
|
|
using the method of apparent motion parameters. |
Kiy2008 |
|
BC: Mt. Wilson spectral type of B is G3, C is K1. |
|
|
AB: HJL 272. |
HJL1986 |
|
AB: H 3 24. |
MEv2010 |
REFERENCES
refcode |
metd |
author |
reference |
HJL1986 |
Pa - |
Halbwachs, J.L. |
1986A&AS...66..131H |
HJL1986 |
|
A&AS 66, 131, 1986 |
|
HJL1986 |
|
(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added |
|
HJL1986 |
|
only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113) |
|
Kiy2008 |
- |
Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. |
2008SvAL...32..405K |
Kiy2008 |
|
SvAL 34, 405, 2008 |
|
MEv2010 |
- |
MacEvoy, B. |
................... |
MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
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 |
20099+2055 |
STF2637 |
BC |
2004 |
51 |
215 |
94.3 |
8.90 |
7.30 |
|
NLD |
200956.25+205504.3 |
20099+2055 |
STF2637 |
BC |
2013 |
56 |
216 |
94.5 |
8.85 |
7.52 |
|
NL |
200956.25+205504.3 |
20099+2055 |
STF2637 |
BC |
2016 |
57 |
215 |
95.9 |
8.85 |
7.52 |
F2 |
NL |
200956.25+205504.3 |
20099+2055 |
STF2637 |
BC |
2017 |
59 |
215 |
95.7 |
8.85 |
7.52 |
F2 |
NL |
200956.25+205504.3 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20099+2055 STF 2637 BC : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20099+2055 STF 2637 BC : MEASURES
No records found.
WDS 20099+2055 : 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 20099+2055 : ALADIN DSS IMAGE @ 20h 09m 56.25s +20° 55' 04.3"
WDS 20099+2055 STF 2637 BC : 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 |
|
20099+2055 |
STF2637 |
BC |
215 |
95.7 |
|
Show |
|
20099+2055 |
STF2637 |
AB |
331 |
11.6 |
1 |
Show |
|
20099+2055 |
STF2637 |
AD |
226 |
172.8 |
1 |
Show |
|
20099+2055 |
STF2637 |
AC |
222 |
91.9 |
1 |
Show |
|
20099+2100 |
S 737 |
|
128 |
101.0 |
6 |
Show |
|
20113+2056 |
J 1875 |
|
100 |
8.8 |
21 |
Show |
|
20086+2041 |
BRT2467 |
|
55 |
4.4 |
24 |
Show |
|
20082+2105 |
J 1168 |
|
193 |
0.9 |
27 |
Show |
|
20108+2029 |
HDS2875 |
|
231 |
0.3 |
29 |
Show |
|
20120+2100 |
HJ 907 |
AB |
137 |
5.7 |
30 |
Show |
|
20120+2100 |
HJ 907 |
AC |
229 |
20.1 |
30 |
Show |
|
20113+2121 |
HO 587 |
|
65 |
11.5 |
33 |
Show |
|
20102+2131 |
TDT2042 |
|
359 |
0.6 |
36 |
Show |
|
20124+2043 |
NSN 730 |
|
146 |
3.2 |
37 |
Show |
|
20072+2106 |
STF2631 |
|
339 |
4.7 |
40 |
Show |
|
20119+2020 |
J 1876 |
|
99 |
8.2 |
45 |
Show |
|
20124+2124 |
DAM1255 |
|
23 |
7.1 |
45 |
Show |
|
20131+2107 |
GRV 323 |
|
204 |
19.0 |
46 |
Show |
|
20115+2013 |
GRV 320 |
|
152 |
31.3 |
48 |
Show |
|
20093+2004 |
HU 355 |
|
352 |
1.2 |
52 |
Show |
|
20076+2139 |
TDT2000 |
|
71 |
0.7 |
56 |
Show |
|
20136+2021 |
BU 1484 |
|
323 |
23.7 |
62 |
Show |
|
20138+2021 |
HJ 2941 |
|
109 |
6.2 |
64 |
Show |
|
20132+2145 |
J 1194 |
|
115 |
6.3 |
68 |
Show |
|
20051+2039 |
BUP 203 |
AB |
247 |
13.4 |
70 |
Show |
|
20051+2039 |
BUP 203 |
AC |
102 |
59.4 |
70 |
Show |
|
20051+2039 |
BLL 44 |
AD |
95 |
75.3 |
70 |
Show |
|
20078+1950 |
WEB 12 |
|
77 |
40.1 |
72 |
Show |
|
20136+2145 |
J 834 |
|
277 |
2.3 |
72 |
Show |
|
20063+1954 |
WAK 19 |
|
166 |
2.0 |
78 |
Show |
|
20153+2120 |
J 3067 |
|
140 |
6.3 |
78 |
Show |
|
20154+2045 |
BRT2469 |
|
60 |
3.9 |
78 |
Show |
|
20065+1957 |
J 1233 |
AB |
245 |
6.9 |
78 |
Show |
|
20065+1957 |
DAM 191 |
AC |
179 |
9.8 |
78 |
Show |
|
20065+1957 |
DAM 191 |
BD |
218 |
9.8 |
78 |
Show |
|
20079+2207 |
BRT2466 |
|
185 |
8.1 |
79 |
Show |
|
20063+2200 |
STJ 37 |
|
198 |
1.4 |
82 |
Show |
|
20114+2217 |
COU 217 |
AB |
343 |
1.5 |
85 |
Show |
|
20114+2217 |
COU 217 |
AC |
291 |
1.5 |
85 |
Show |
|
20039+2034 |
COU 216 |
|
218 |
0.5 |
88 |
Show |
|
20036+2050 |
GRV 308 |
|
213 |
38.1 |
88 |
Show |
|
20123+2215 |
J 3057 |
|
104 |
6.7 |
88 |
Show |
|
20045+2009 |
BRT2465 |
|
209 |
3.0 |
89 |
Show |
|
20112+2222 |
GRV 319 |
|
352 |
69.3 |
89 |
Show |
|
20163+2033 |
HDS2888 |
|
283 |
0.6 |
93 |
Show |
|
20134+2214 |
J 3061 |
|
267 |
5.4 |
93 |
Show |
|
20148+2159 |
HDS2886 |
|
64 |
1.0 |
93 |
Show |
|
20080+2224 |
RAO 426 |
|
302 |
3.0 |
93 |
Show |
|
20033+2034 |
BRT2463 |
|
13 |
3.2 |
95 |
Show |
|
20125+1924 |
J 3059 |
|
155 |
7.1 |
96 |
Show |
|
20124+2224 |
GRV 322 |
AB |
187 |
54.2 |
97 |
|
|
WDS 20099+2055 : COMPONENTS
|
A |
B |
C |
B |
pa=335.6°
sep=12.19"
| |
C |
pa=219.7°
sep=89.31"
| pa=213.1°
sep=95.27"
| |
D |
pa=224.3°
sep=166.95"
| pa=220.6°
sep=171.74"
| pa=229.7°
sep=78.28"
|
20099+2055 A
Name |
The Sge |
|
Coord arcsec 2000 |
200956.61+205453.2 |
|
Mag |
6.56 |
|
Spectral class |
F3V (yellow-white) |
|
PmRA |
59.00 |
|
PmDE |
98.0 |
|
SAO |
88276 |
|
HIP |
99352 |
|
Tycho2 |
1630-00481-1 |
|
HD |
191570 |
|
HR |
7705 |
|
GC |
27987 |
|
BD |
BD+20 4453 |
|
Bayer |
Theta Sagittae |
|
Bayer name |
The Sge |
|
Flamsteed |
17 Sagittae |
|
Flamsteed name |
17 Sge |
|
Tycho2 |
1630-00481-1 |
|
Pflag |
|
|
RAmdeg |
302.48603322 |
|
DEmdeg |
20.91502405 |
|
PmRA |
59.3 |
|
PmDE |
96.8 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
E pmRA |
0.9 |
|
E pmDE |
0.9 |
|
EpRAm |
1991.43 |
|
EpDEm |
1991.21 |
|
Num |
15 |
|
Q RAmdeg |
1.2 |
|
Q DEmdeg |
1.0 |
|
Q pmRA |
1.3 |
|
Q pmDE |
0.9 |
|
BTmag |
6.957 |
|
E BTmag |
0.015 |
|
VTmag |
6.561 |
|
E VTmag |
0.010 |
|
Prox |
116 |
|
TYC |
T |
|
HIP |
99352 |
|
CCDM |
A |
|
RAdeg |
302.48588750 |
|
DEdeg |
20.91479667 |
|
EpRA 1990 |
1.74 |
|
EpDE 1990 |
1.54 |
|
E RAdeg |
3.9 |
|
E DEdeg |
4.4 |
|
Posflg |
|
|
Corr |
0.2 |
|
SAO |
88276 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0038 |
|
DE1950 |
|
|
PmDE1950 |
0.103 |
|
Vmag |
6.3 |
|
SpType |
F2 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
27987 |
|
DM |
BD+20 4453 |
|
DMcomp |
A |
|
BDsup |
|
|
HD |
191570 |
|
M HD |
0 |
|
GC |
27987 |
|
RA1950rad |
5.26974183 |
|
DE1950rad |
0.36242381 |
|
PmRA2000 |
0.0038 |
|
PmDE2000 |
0.101 |
|
Catalog |
H |
|
HIP |
99352 |
|
Proxy |
|
|
RAhms |
20 09 56.61 |
|
DEdms |
+20 54 53.2 |
|
Vmag |
6.51 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
302.486 |
|
DEdeg |
20.9148 |
|
AstroRef |
A |
|
Plx |
22.22 |
|
CCDM |
20099+2054 |
|
N CCDM |
I |
|
Nsys |
2 |
|
Ncomp |
1 |
|
MultFlag |
C |
|
Source |
P |
|
Qual |
A |
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
191570 |
|
BD |
BD+20 4453 |
|
CD |
|
|
CP |
|
|
Dm number |
+20 4453 |
|
VIred |
0.45 |
|
SpType |
F5IV |
|
R SpType |
|
|
Coord arcsec 2000 |
200956.61+205453.2 |
|
HIP |
99352 |
|
Sn |
95 |
|
So |
3 |
|
Nc |
1 |
|
RArad |
5.2793744733 |
|
DErad |
0.3650319349 |
|
Plx |
22.1 |
|
PmRA |
59.68 |
|
PmDE |
98.43 |
|
E RArad |
0.68 |
|
E DErad |
0.58 |
|
E Plx |
0.89 |
|
E pmRA |
0.9 |
|
E pmDE |
0.84 |
|
Hpmag |
6.6016 |
|
E Hpmag |
0.0053 |
|
SHp |
0.017 |
|
VA |
0 |
|
BV |
0.394 |
|
E BV |
0.006 |
|
VI |
0.46 |
|
20099+2055 B
Coord arcsec 2000 |
200956.25+205504.3 |
|
Coord calc |
200956.25+205504.3 |
|
Mag |
8.85 |
|
Spectral class |
F2 (yellow-white) |
|
PmRA |
64.00 |
|
PmDE |
102.0 |
|
HIP |
99351 |
|
Calc delta mag |
2.29 |
|
Catalog |
H |
|
HIP |
99351 |
|
Proxy |
|
|
RAhms |
20 09 56.20 |
|
DEdms |
+20 55 03.3 |
|
Vmag |
8.82 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
302.484 |
|
DEdeg |
20.9176 |
|
AstroRef |
B |
|
Plx |
18.75 |
|
CCDM |
20099+2054 |
|
N CCDM |
I |
|
Nsys |
2 |
|
Ncomp |
1 |
|
MultFlag |
C |
|
Source |
I |
|
Qual |
A |
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
|
|
BD |
|
|
CD |
|
|
CP |
|
|
Dm number |
|
|
VIred |
0.8 |
|
SpType |
F2 |
|
R SpType |
|
|
Coord arcsec 2000 |
200956.20+205503.3 |
|
HIP |
99351 |
|
Sn |
95 |
|
So |
3 |
|
Nc |
1 |
|
RArad |
5.2793445072 |
|
DErad |
0.3650808239 |
|
Plx |
22.41 |
|
PmRA |
56.18 |
|
PmDE |
97.46 |
|
E RArad |
0.76 |
|
E DErad |
0.66 |
|
E Plx |
0.92 |
|
E pmRA |
1.03 |
|
E pmDE |
0.99 |
|
Hpmag |
9.0549 |
|
E Hpmag |
0.0474 |
|
SHp |
0 |
|
VA |
0 |
|
BV |
0.74 |
|
E BV |
0.028 |
|
VI |
0.79 |
|
20099+2055 C
Coord arcsec 2000 |
200952.54+205344.5 |
|
Mag |
7.52 |
|
Spectral class |
F5IV (yellow-white) |
|
PmRA |
5.00 |
|
PmDE |
-5.0 |
|
SAO |
88270 |
|
Tycho2 |
1630-00917-1 |
|
HD |
191571 |
|
GC |
27982 |
|
DM |
BD+20 4452 |
|
Flamsteed |
17 Sagittae |
|
Flamsteed name |
17 Sge |
|
Calc delta mag |
0.96 |
|
Calc coord |
yes |
|
Tycho2 |
1630-00917-1 |
|
Pflag |
|
|
RAmdeg |
302.46829073 |
|
DEmdeg |
20.89651823 |
|
PmRA |
4.8 |
|
PmDE |
-4.6 |
|
E RAmdeg |
6 |
|
E DEmdeg |
6 |
|
E pmRA |
0.9 |
|
E pmDE |
0.8 |
|
EpRAm |
1990.96 |
|
EpDEm |
1990.75 |
|
Num |
14 |
|
Q RAmdeg |
1.2 |
|
Q DEmdeg |
1.2 |
|
Q pmRA |
1.2 |
|
Q pmDE |
1.2 |
|
BTmag |
8.885 |
|
E BTmag |
0.018 |
|
VTmag |
7.520 |
|
E VTmag |
0.012 |
|
Prox |
885 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
302.46827889 |
|
DEdeg |
20.89652889 |
|
EpRA 1990 |
1.73 |
|
EpDE 1990 |
1.60 |
|
E RAdeg |
5.6 |
|
E DEdeg |
6.2 |
|
Posflg |
|
|
Corr |
0.4 |
|
SAO |
88270 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0003 |
|
DE1950 |
|
|
PmDE1950 |
0.009 |
|
Vmag |
7.3 |
|
SpType |
K2 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
27982 |
|
DM |
BD+20 4452 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
191571 |
|
M HD |
0 |
|
GC |
27982 |
|
RA1950rad |
5.2694439 |
|
DE1950rad |
0.36212693 |
|
PmRA2000 |
-0.0002 |
|
PmDE2000 |
0.007 |
|
20099+2055 D
Coord arcsec 2000 |
200948.28+205253.8 |
|
Mag |
11.94 |
|
PmRA |
-5.00 |
|
PmDE |
-3.0 |
|
Calc delta mag |
5.38 |
|
Calc coord |
yes |
|