21379+2102 YR 30 (HD 205897)
21h 37m 56.03s +21° 02' 28.3" P.A. 340.00 sep 0.1 mag 8.90,9.00 Sp G5 dist. 112.11 pc (365.7 l.y.)
Coord 2000 |
21379+2102 |
|
Discov num |
YR 30 |
|
Comp |
|
|
Coord arcsec 2000 |
21 37 56.03 +21 02 28.3 |
|
Date first |
2000 |
|
Date last |
2021 |
|
Obs |
15 |
|
Pa first |
334 |
|
Pa last |
339.6 |
|
P.A. Now (θ) |
344.7° |
|
Sep first |
0.1 |
|
Sep last |
0.148 |
|
Sep. Now (ρ) |
0.145" |
|
Mag pri |
8.90 |
|
Mag sec |
9.00 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
+053 |
|
Sec motion ra |
|
|
Pri motion dec |
+081 |
|
Sec motion dec |
|
|
Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 205897 |
|
Constellation |
Pegasus |
|
SAO |
89858 |
|
HIP |
106804 |
|
Tycho2 |
1677-00210-1 |
|
Gaia DR2 |
1787577143922361984 |
|
HD |
205897 |
|
BD |
BD+20 4977 |
|
Distance |
112.11 |
|
Distance ly |
365.7 |
|
ORBITAL ELEMENTS
Period (P) | 18.472y | ± 0.396 |
Periastron (T) | 2011.139y | ± 0.31 |
Semi-major axis (a) | 0.087a | ± 0.0078 |
Eccentricity (e) | 0.771 | ± 0.279 |
Inclination (i) | 43.7° | ± 12 |
Longitude of periastron (ω) | 343.2° | ± 23.1 |
Node (Ω) | 169° | ± 18.6 |
Notes | | |
Reference | Cve2017b | |
Equinox | 2000 | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
330.8 |
0.143 |
2001 |
334.0 |
0.149 |
2002 |
337.0 |
0.151 |
2003 |
339.9 |
0.151 |
2004 |
343.0 |
0.148 |
2005 |
346.2 |
0.142 |
2006 |
349.8 |
0.132 |
2007 |
354.1 |
0.119 |
2008 |
359.6 |
0.102 |
2009 |
8.1 |
0.078 |
2010 |
26.1 |
0.047 |
2011 |
130.0 |
0.018 |
2012 |
258.2 |
0.033 |
2013 |
293.7 |
0.059 |
2014 |
307.5 |
0.083 |
2015 |
315.5 |
0.102 |
2016 |
321.1 |
0.118 |
2017 |
325.5 |
0.130 |
2018 |
329.2 |
0.140 |
2019 |
332.5 |
0.146 |
2020 |
335.6 |
0.150 |
2021 |
338.5 |
0.151 |
2022 |
341.5 |
0.150 |
2023 |
344.7 |
0.145 |
2024 |
348.0 |
0.137 |
2025 |
352.0 |
0.126 |
2026 |
356.8 |
0.111 |
2027 |
3.5 |
0.090 |
2028 |
15.3 |
0.063 |
2029 |
54.0 |
0.027 |
2030 |
214.5 |
0.023 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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|
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Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 21379+2102 YR 30 (HD 205897) : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
Cve2017b |
orb - |
Cvetkovic, Z. & Pavlovic, R. |
2017AJ....154..273C |
Cve2017b |
|
AJ 154, 273, 2017 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
YR |
Yale-Rochester (from additional DD list - see HOR) |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
21379+2102 |
YR 30 |
|
2003 |
4 |
343 |
0.1 |
8.17 |
|
|
D |
213756.03+210228.3 |
21379+2102 |
YR 30 |
|
2006 |
5 |
356 |
0.1 |
8.90 |
9.00 |
|
D |
213756.03+210228.3 |
21379+2102 |
YR 30 |
|
2008 |
7 |
1 |
0.1 |
8.90 |
9.00 |
|
D |
213756.03+210228.3 |
21379+2102 |
YR 30 |
|
2015 |
9 |
320 |
0.1 |
8.90 |
9.00 |
G5 |
|
213756.03+210228.3 |
21379+2102 |
YR 30 |
|
2017 |
12 |
328 |
0.1 |
8.90 |
9.00 |
G5 |
|
213756.03+210228.3 |
21379+2102 |
YR 30 |
|
2018 |
13 |
330 |
0.1 |
8.90 |
9.00 |
G5 |
O |
213756.03+210228.3 |
21379+2102 |
YR 30 |
|
2019 |
14 |
333 |
0.1 |
8.90 |
9.00 |
G5 |
O |
213756.03+210228.3 |
21379+2102 |
YR 30 |
|
2021 |
15 |
340 |
0.1 |
8.90 |
9.00 |
G5 |
O |
213756.03+210228.3 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 21379+2102 YR 30 (HD 205897) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 21379+2102 YR 30 (HD 205897) : MEASURES
No records found.
WDS 21379+2102 (HD 205897) : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
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WDS 21379+2102 (HD 205897) : ALADIN DSS IMAGE @ 21h 37m 56.03s +21° 02' 28.3"
WDS 21379+2102 YR 30 (HD 205897) : 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 |
|
21379+2102 |
YR 30 |
|
340 |
0.1 |
|
Show |
|
21393+2043 |
STT 445 |
|
120 |
1.0 |
28 |
Show |
|
21391+2036 |
STT 444 |
|
277 |
8.0 |
31 |
Show |
|
21397+2041 |
GMC 23 |
|
342 |
10.5 |
34 |
Show |
|
21352+2124 |
BU 74 |
|
338 |
1.0 |
44 |
Show |
|
21417+2100 |
UC 4531 |
|
213 |
69.8 |
53 |
Show |
|
21408+2140 |
LDS4903 |
|
100 |
81.0 |
56 |
Show |
|
21399+2005 |
UC 4521 |
|
35 |
12.3 |
65 |
Show |
|
21427+2102 |
J 614 |
|
307 |
2.0 |
67 |
Show |
|
21330+2043 |
STF2804 |
AB |
359 |
3.4 |
73 |
Show |
|
21330+2043 |
STF2804 |
AC |
103 |
97.1 |
73 |
Show |
|
21424+2140 |
GRV 495 |
|
146 |
33.8 |
74 |
Show |
|
21403+1955 |
SLW1246 |
|
345 |
155.2 |
76 |
Show |
|
21326+2048 |
GMC 21 |
|
130 |
10.5 |
77 |
Show |
|
21433+2046 |
J 852 |
|
92 |
4.2 |
78 |
Show |
|
21334+2018 |
J 613 |
|
222 |
5.1 |
78 |
Show |
|
21347+1953 |
TDT3040 |
|
23 |
0.9 |
84 |
Show |
|
21429+2152 |
HJ 1683 |
AB |
169 |
12.6 |
86 |
Show |
|
21429+2152 |
HJ 1683 |
AC |
315 |
27.3 |
86 |
Show |
|
21429+2152 |
ABH 150 |
AD |
28 |
75.5 |
86 |
Show |
|
21373+2230 |
CVR 911 |
|
174 |
10.5 |
88 |
Show |
|
21434+2147 |
COU 536 |
|
227 |
1.0 |
89 |
Show |
|
21431+2157 |
BRT2499 |
|
206 |
4.8 |
91 |
Show |
|
21419+1949 |
CBL 533 |
|
123 |
64.8 |
93 |
Show |
|
21313+2112 |
GRV 473 |
|
26 |
46.4 |
93 |
Show |
|
21310+2128 |
COU 232 |
|
34 |
0.6 |
101 |
Show |
|
21349+1923 |
TDT3041 |
|
350 |
0.8 |
109 |
Show |
|
21368+1915 |
BRT2498 |
|
268 |
5.0 |
109 |
Show |
|
21457+2100 |
UC 4553 |
|
184 |
63.7 |
109 |
Show |
|
21399+1914 |
COU 330 |
|
190 |
0.5 |
113 |
Show |
|
21362+1912 |
TDT3052 |
|
197 |
1.7 |
114 |
Show |
|
21461+2111 |
AG 277 |
|
62 |
2.7 |
115 |
Show |
|
21409+1915 |
HDS3086 |
|
66 |
1.1 |
115 |
Show |
|
21455+2156 |
AG 276 |
|
1 |
2.0 |
119 |
Show |
|
21385+1902 |
TDT3077 |
AB |
294 |
0.4 |
121 |
Show |
|
21385+1902 |
SKF 292 |
AB,C |
91 |
16.2 |
121 |
Show |
|
21451+1954 |
RAO 466 |
|
249 |
0.6 |
122 |
Show |
|
21458+2155 |
HU 1656 |
|
305 |
2.2 |
123 |
Show |
|
21384+1858 |
TDT3075 |
|
250 |
1.0 |
125 |
Show |
|
21423+2252 |
AZC 114 |
|
162 |
16.8 |
125 |
Show |
|
21368+1858 |
TDT3062 |
|
151 |
0.6 |
126 |
Show |
|
21461+2001 |
HU 376 |
|
14 |
1.4 |
131 |
Show |
|
21287+2028 |
J 611 |
|
21 |
1.8 |
134 |
Show |
|
21473+2134 |
GRV 505 |
|
327 |
45.5 |
135 |
Show |
|
21465+2210 |
HO 465 |
BC |
80 |
4.9 |
137 |
Show |
|
21398+2317 |
CVR 913 |
|
39 |
17.1 |
137 |
Show |
|
21465+2210 |
HDS3101 |
Aa,Ab |
22 |
0.1 |
138 |
Show |
|
21465+2210 |
HO 465 |
AB |
246 |
44.5 |
138 |
Show |
|
21420+1856 |
DAM 16 |
CD |
90 |
3.5 |
139 |
Show |
|
21420+1856 |
LBU 2 |
Aa,Ab |
22 |
0.6 |
139 |
Show |
|
21420+1856 |
STF2818 |
AB |
24 |
26.8 |
139 |
|
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WDS 21379+2102 : COMPONENTS
21379+2102 A
Componente originario normalizzato |
AB |
|
Name |
HD 205897 |
|
Coord arcsec 2000 |
213756.03+210228.3 |
|
Mag |
8.9 |
|
Spectral class |
G5 (yellow) |
|
PmRA |
53.00 |
|
PmDE |
81.0 |
|
SAO |
89858 |
|
HIP |
106804 |
|
Tycho2 |
1677-00210-1 |
|
HD |
205897 |
|
BD |
BD+20 4977 |
|
Tycho2 |
1677-00210-1 |
|
Pflag |
|
|
RAmdeg |
324.48361038 |
|
DEmdeg |
21.04139748 |
|
PmRA |
53.3 |
|
PmDE |
80.6 |
|
E RAmdeg |
5 |
|
E DEmdeg |
6 |
|
E pmRA |
1.0 |
|
E pmDE |
1.0 |
|
EpRAm |
1991.37 |
|
EpDEm |
1991.25 |
|
Num |
12 |
|
Q RAmdeg |
1.0 |
|
Q DEmdeg |
0.7 |
|
Q pmRA |
1.0 |
|
Q pmDE |
0.7 |
|
BTmag |
8.936 |
|
E BTmag |
0.016 |
|
VTmag |
8.240 |
|
E VTmag |
0.011 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
106804 |
|
CCDM |
|
|
RAdeg |
324.48348222 |
|
DEdeg |
21.04121806 |
|
EpRA 1990 |
1.90 |
|
EpDE 1990 |
1.97 |
|
E RAdeg |
4.6 |
|
E DEdeg |
5.5 |
|
Posflg |
|
|
Corr |
-0.1 |
|
SAO |
89858 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0028 |
|
DE1950 |
|
|
PmDE1950 |
0.086 |
|
Vmag |
8.3 |
|
SpType |
G5 |
|
Double code |
|
|
Source |
35 |
|
CatNum |
8320 |
|
DM |
BD+20 4977 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
205897 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
5.65319487 |
|
DE1950rad |
0.36328091 |
|
PmRA2000 |
0.0028 |
|
PmDE2000 |
0.082 |
|
Catalog |
H |
|
HIP |
106804 |
|
Proxy |
|
|
RAhms |
21 37 56.03 |
|
DEdms |
+21 02 28.3 |
|
Vmag |
8.17 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
324.483 |
|
DEdeg |
21.0412 |
|
AstroRef |
|
|
Plx |
8.13 |
|
CCDM |
|
|
N CCDM |
|
|
Nsys |
|
|
Ncomp |
1 |
|
MultFlag |
|
|
Source |
|
|
Qual |
|
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
205897 |
|
BD |
BD+20 4977 |
|
CD |
|
|
CP |
|
|
Dm number |
+20 4977 |
|
VIred |
0.72 |
|
SpType |
G5 |
|
R SpType |
|
|
Coord arcsec 2000 |
213756.03+210228.3 |
|
HIP |
106804 |
|
Sn |
5 |
|
So |
0 |
|
Nc |
1 |
|
RArad |
5.6633048786 |
|
DErad |
0.3672382423 |
|
Plx |
8.92 |
|
PmRA |
53.44 |
|
PmDE |
80.07 |
|
E RArad |
0.52 |
|
E DErad |
0.46 |
|
E Plx |
0.82 |
|
E pmRA |
0.69 |
|
E pmDE |
0.53 |
|
Hpmag |
8.3028 |
|
E Hpmag |
0.0013 |
|
SHp |
0.015 |
|
VA |
0 |
|
BV |
0.647 |
|
E BV |
0.011 |
|
VI |
0.71 |
|
21379+2102 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
213756.03+210228.4 |
|
Mag |
9 |
|
Calc delta mag |
0.1 |
|
Calc coord |
yes |
|