02518-2117 SEE 21 (HD 17881)
02h 51m 46.12s -21° 17' 23.1" P.A. 323.00 sep 0.1 mag 9.00,9.20 Sp G3IV dist. 208.77 pc (681.01 l.y.)
Coord 2000 |
02518-2117 |
|
Discov num |
SEE 21 |
|
Comp |
|
|
Coord arcsec 2000 |
02 51 46.12 -21 17 23.1 |
|
Date first |
1897 |
|
Date last |
2021 |
|
Obs |
19 |
|
Pa first |
98 |
|
Pa last |
323 |
|
P.A. Now (θ) |
323° |
|
Sep first |
0.4 |
|
Sep last |
0.084 |
|
Sep. Now (ρ) |
0.084" |
|
Mag pri |
9.00 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
G3IV (yellow) |
|
Pri motion ra |
+006 |
|
Sec motion ra |
|
|
Pri motion dec |
+008 |
|
Sec motion dec |
|
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 17881 |
|
Constellation |
Eridanus |
|
SAO |
168103 |
|
HIP |
13349 |
|
Tycho2 |
5870-00348-1 |
|
Gaia DR2 |
5127489879618204928 |
|
HD |
17881 |
|
BD |
BD-21 511 |
|
Distance |
208.77 |
|
Distance ly |
681.01 |
|
WDS 02518-2117 SEE 21 (HD 17881) : NOTES
discov_num |
notes |
refcode |
SEE 21 |
This very close visual system was discovered at a separation of 0".36 |
See1898b |
|
and has closed steadily for over 90 years. It is unknown at this |
|
|
point whether the system is still approaching periastron or has |
|
|
begun to widen. |
Hrt1993 |
REFERENCES
refcode |
metd |
author |
reference |
Hrt1993 |
Sc j |
Hartkopf, W.I., Mason, B.D., Barry, D.J., McAlister, H.A., Bagnuolo, W.G., & |
1993AJ....106..352H |
Hrt1993 |
|
Prieto, C.M. |
|
Hrt1993 |
|
AJ 106, 352, 1993 |
|
See1898b |
Ma j |
See, T.J.J. |
1898AJ.....18..181S |
See1898b |
|
AJ 18, 181, 1898 |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
02518-2117 |
SEE 21 |
|
1993 |
17 |
51 |
0.1 |
9.00 |
9.20 |
G3IV |
N |
025146.12-211723.1 |
02518-2117 |
SEE 21 |
|
2020 |
18 |
325 |
0.1 |
9.00 |
9.20 |
G3IV |
N |
025146.12-211723.1 |
02518-2117 |
SEE 21 |
|
2021 |
19 |
323 |
0.1 |
9.00 |
9.20 |
G3IV |
N |
025146.12-211723.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 02518-2117 SEE 21 (HD 17881) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 02518-2117 SEE 21 (HD 17881) : MEASURES
No records found.
WDS 02518-2117 (HD 17881) : 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 02518-2117 (HD 17881) : ALADIN DSS IMAGE @ 02h 51m 46.12s -21° 17' 23.1"
WDS 02518-2117 SEE 21 (HD 17881) : 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 |
|
02518-2117 |
SEE 21 |
|
323 |
0.1 |
|
Show |
|
02512-2125 |
I 461 |
|
330 |
3.2 |
12 |
Show |
Angetenar |
02510-2100 |
SEE 20 |
|
127 |
49.6 |
20 |
Show |
|
02514-2139 |
DON 43 |
|
287 |
0.2 |
23 |
Show |
|
02546-2109 |
KPP1712 |
|
96 |
13.2 |
41 |
Show |
|
02476-2115 |
RST2287 |
|
60 |
0.7 |
58 |
Show |
|
02501-2210 |
DON 42 |
|
187 |
1.3 |
58 |
Show |
|
02532-2014 |
ARA 833 |
|
358 |
11.1 |
66 |
Show |
|
02498-2015 |
HJ 3533 |
|
267 |
37.8 |
69 |
Show |
|
02513-2226 |
LDS3433 |
|
73 |
15.7 |
71 |
Show |
|
02544-2007 |
HDS 371 |
|
347 |
0.1 |
80 |
Show |
|
02482-2232 |
RST2288 |
|
47 |
1.2 |
90 |
Show |
|
02566-2219 |
NSN 242 |
CD |
273 |
4.4 |
92 |
Show |
|
02472-2229 |
SKF2167 |
AB |
213 |
69.4 |
97 |
Show |
|
02472-2229 |
CVN 71 |
AC |
347 |
1.7 |
97 |
Show |
|
02441-2125 |
KPP2029 |
|
287 |
16.2 |
108 |
Show |
|
02456-2004 |
DON 40 |
|
283 |
0.2 |
114 |
Show |
|
02464-2250 |
SKF2166 |
|
272 |
29.5 |
119 |
Show |
|
02432-2108 |
LDS3420 |
|
292 |
3.3 |
121 |
Show |
|
03001-2157 |
DVG 15 |
|
156 |
12.3 |
123 |
Show |
|
02502-2323 |
RST2289 |
|
300 |
0.3 |
128 |
Show |
|
02528-2330 |
I 717 |
|
295 |
2.2 |
134 |
Show |
|
02430-2017 |
HJ 3524 |
|
166 |
19.8 |
138 |
Show |
|
02535-1859 |
LDS5400 |
|
156 |
308.4 |
139 |
Show |
|
03017-2136 |
RST2291 |
|
129 |
1.3 |
140 |
Show |
|
02437-2240 |
RST2286 |
|
1 |
0.2 |
140 |
Show |
|
02489-1902 |
B 1924 |
|
236 |
0.4 |
142 |
Show |
|
02578-2317 |
ARA1971 |
|
93 |
17.3 |
146 |
Show |
|
02573-2323 |
I 149 |
|
259 |
6.1 |
147 |
Show |
|
03022-2145 |
I 462 |
|
107 |
0.8 |
149 |
Show |
|
02474-2341 |
HU 1561 |
|
320 |
1.1 |
156 |
Show |
|
02586-2322 |
UC 922 |
|
209 |
12.8 |
158 |
Show |
|
02439-1925 |
LDS5392 |
|
223 |
180.6 |
158 |
Show |
|
02461-1853 |
UC 801 |
|
86 |
28.0 |
166 |
Show |
|
03038-2122 |
HJ 3548 |
|
125 |
12.2 |
168 |
Show |
|
02396-2115 |
B 1922 |
|
246 |
1.4 |
170 |
Show |
|
02401-2029 |
BRT 298 |
|
314 |
4.0 |
172 |
Show |
|
02395-2113 |
DAM1293 |
|
193 |
3.3 |
172 |
Show |
|
02445-1859 |
GWP 362 |
|
298 |
159.3 |
172 |
Show |
|
02542-1826 |
LDS3437 |
|
271 |
57.2 |
176 |
Show |
|
02397-2026 |
HDS 346 |
|
221 |
0.8 |
178 |
Show |
|
03020-2309 |
TDS2417 |
AB |
33 |
1.6 |
181 |
Show |
|
02476-1819 |
LV 2 |
|
26 |
2.9 |
188 |
Show |
|
02578-1826 |
RSS 61 |
|
356 |
31.1 |
192 |
Show |
|
02563-1816 |
GWP 400 |
|
287 |
65.9 |
193 |
Show |
|
03059-2113 |
ARA1264 |
|
263 |
11.7 |
198 |
Show |
|
02498-2434 |
BU 877 |
AB |
145 |
12.1 |
198 |
Show |
|
02498-2434 |
HJ 2161 |
AC |
129 |
37.3 |
198 |
Show |
|
02498-2434 |
FOX9021 |
AD |
290 |
52.3 |
198 |
Show |
|
02404-1914 |
RST2285 |
|
330 |
2.7 |
203 |
Show |
|
02427-2358 |
KPP2866 |
|
64 |
1.8 |
205 |
|
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WDS 02518-2117 : COMPONENTS
02518-2117 A
Componente originario normalizzato |
AB |
|
Name |
HD 17881 |
|
Coord arcsec 2000 |
025146.12-211723.1 |
|
Mag |
9 |
|
Spectral class |
G3IV (yellow) |
|
PmRA |
6.00 |
|
PmDE |
8.0 |
|
SAO |
168103 |
|
HIP |
13349 |
|
Tycho2 |
5870-00348-1 |
|
HD |
17881 |
|
BD |
BD-21 511 |
|
Tycho2 |
5870-00348-1 |
|
Pflag |
|
|
RAmdeg |
42.94218012 |
|
DEmdeg |
-21.28973132 |
|
PmRA |
-2.0 |
|
PmDE |
6.0 |
|
E RAmdeg |
6 |
|
E DEmdeg |
6 |
|
E pmRA |
1.5 |
|
E pmDE |
1.5 |
|
EpRAm |
1990.92 |
|
EpDEm |
1991.15 |
|
Num |
7 |
|
Q RAmdeg |
1.0 |
|
Q DEmdeg |
0.8 |
|
Q pmRA |
0.9 |
|
Q pmDE |
0.9 |
|
BTmag |
9.099 |
|
E BTmag |
0.017 |
|
VTmag |
8.256 |
|
E VTmag |
0.012 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
13349 |
|
CCDM |
|
|
RAdeg |
42.94218500 |
|
DEdeg |
-21.28974500 |
|
EpRA 1990 |
1.42 |
|
EpDE 1990 |
1.66 |
|
E RAdeg |
6.3 |
|
E DEdeg |
5.8 |
|
Posflg |
|
|
Corr |
-0.2 |
|
SAO |
168103 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.001 |
|
DE1950 |
|
|
PmDE1950 |
0.001 |
|
Vmag |
8 |
|
SpType |
G0 |
|
Double code |
|
|
Source |
23 |
|
CatNum |
776 |
|
DM |
BD-21 511 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
17881 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
0.7395923 |
|
DE1950rad |
-0.37515286 |
|
PmRA2000 |
0.0013 |
|
PmDE2000 |
-0.002 |
|
Catalog |
H |
|
HIP |
13349 |
|
Proxy |
|
|
RAhms |
02 51 46.12 |
|
DEdms |
-21 17 23.1 |
|
Vmag |
8.18 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
42.9422 |
|
DEdeg |
-21.2897 |
|
AstroRef |
|
|
Plx |
4.26 |
|
CCDM |
02518-2117 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
1 |
|
MultFlag |
|
|
Source |
|
|
Qual |
S |
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
17881 |
|
BD |
BD-21 511 |
|
CD |
|
|
CP |
|
|
Dm number |
-21 511 |
|
VIred |
0.77 |
|
SpType |
G3IV |
|
R SpType |
|
|
Coord arcsec 2000 |
025146.12-211723.1 |
|
HIP |
13349 |
|
Sn |
5 |
|
So |
0 |
|
Nc |
1 |
|
RArad |
0.749482513 |
|
DErad |
-0.371576155 |
|
Plx |
4.79 |
|
PmRA |
-0.81 |
|
PmDE |
3.47 |
|
E RArad |
0.46 |
|
E DErad |
0.71 |
|
E Plx |
0.79 |
|
E pmRA |
0.56 |
|
E pmDE |
0.9 |
|
Hpmag |
8.3278 |
|
E Hpmag |
0.0016 |
|
SHp |
0.013 |
|
VA |
0 |
|
BV |
0.756 |
|
E BV |
0.013 |
|
VI |
0.8 |
|
Ccdm |
02518-2117 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-1.82 |
|
DDEs |
-23.6 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
9.0 |
|
Sp |
G0 |
|
PmNote |
* |
|
PmRA |
14 |
|
PmDE |
1 |
|
Dm number |
-21 511 |
|
Cat1 |
BD |
|
Name2 |
168103 |
|
Cat2 |
SAO |
|
HD |
17881 |
|
M HD |
|
|
ADS BDS |
A 2186 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
02472S2142A |
|
HIC |
13349 |
|
02518-2117 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
025146.12-211723.0 |
|
Mag |
9.2 |
|
Calc delta mag |
0.2 |
|
Calc coord |
yes |
|
Ccdm |
02518-2117 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
SEE 21 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1959 |
|
Theta |
078 |
|
Rho |
0.2 |
|
Obs |
11 |
|
Vmag |
9.2 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A 2186 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
02472S2142B |
|
HIC |
13349 |
|