10084-1945 BU 911 AB (HD 87998)
10h 08m 21.38s -19° 45' 18.8" P.A. 315.00 sep 4.1 mag 7.35,11.21 Sp G0V dist. 37.57 pc (122.55 l.y.)
Coord 2000 |
10084-1945 |
|
Discov num |
BU 911 |
|
Comp |
AB |
|
Coord arcsec 2000 |
10 08 21.38 -19 45 18.8 |
|
Date first |
1880 |
|
Date last |
2016 |
|
Obs |
22 |
|
Pa first |
312 |
|
Pa last |
315.3 |
|
P.A. Now (θ) |
315.3° |
|
Sep first |
4.8 |
|
Sep last |
4.115 |
|
Sep. Now (ρ) |
4.115" |
|
Mag pri |
7.35 |
|
Mag sec |
11.21 |
|
delta mag (ΔM) |
3.86 |
|
Spectral class |
G0V (yellow) |
|
Pri motion ra |
-148 |
|
Sec motion ra |
-148 |
|
Pri motion dec |
-329 |
|
Sec motion dec |
-329 |
|
Notes |
N
V
(See Notes, Proper motion indicates physical) |
|
This double is physical.
10084-1945 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 87998 |
155757 |
10 08 21 -19 45 19 |
BU 911 AB |
2016 |
22 |
315 |
4.1 |
7.35 |
11.21 |
3.86 |
|
<=== |
Show |
|
155757 |
10 08 21 -19 45 19 |
BU 911 AC |
2016 |
20 |
54 |
83.4 |
7.35 |
11.38 |
4.03 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 87998 |
|
Constellation |
Hydra |
|
SAO |
155757 |
|
HIP |
49668 |
|
Tycho2 |
6067-00598-1 |
|
HD |
87998 |
|
GC |
13929 |
|
BD |
BD-19 2926 |
|
Distance |
37.57 |
|
Distance ly |
122.55 |
|
WDS 10084-1945 BU 911 AB (HD 87998) : NOTES
discov_num |
notes |
refcode |
BU 911 |
HIP 49668. See Allen et al. (2000) for information on metallicity, |
AlC2000 |
|
age, galactic orbital parameters, etc. |
|
|
AB CfA: A=SB? |
Tok2014d |
|
AC: Optical pair, based on study of relative motion of the components |
|
|
using the method of apparent motion parameters. |
Kiy2008 |
REFERENCES
refcode |
metd |
author |
reference |
AlC2000 |
Po - |
Allen, C., Poveda, A., & Herrera, M |
2000A&A...356..529A |
AlC2000 |
|
A&A 356, 529, 2000 |
|
Kiy2008 |
- |
Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. |
2008SvAL...32..405K |
Kiy2008 |
|
SvAL 34, 405, 2008 |
|
Tok2014d |
E2 - |
Tokovinin, A. |
2014AJ....147...86T |
Tok2014d |
|
AJ 147, 86, 2014 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
BU |
Burnham, S.W. (BU 1 - 81) |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
10084-1945 |
BU 911 |
AB |
1999 |
17 |
312 |
3.9 |
7.35 |
11.21 |
G0V |
N D |
100821.47-194515.9 |
10084-1945 |
BU 911 |
AB |
2001 |
18 |
313 |
4.1 |
7.35 |
11.21 |
G0V |
N D |
100821.47-194515.9 |
10084-1945 |
BU 911 |
AB |
2015 |
19 |
315 |
4.1 |
7.35 |
11.21 |
G0V |
NV |
100821.38-194518.8 |
10084-1945 |
BU 911 |
AB |
2016 |
22 |
315 |
4.1 |
7.35 |
11.21 |
G0V |
NV |
100821.38-194518.8 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 10084-1945 BU 911 AB (HD 87998) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 10084-1945 BU 911 AB (HD 87998) : MEASURES
No records found.
WDS 10084-1945 (HD 87998) : 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 10084-1945 (HD 87998) : ALADIN DSS IMAGE @ 10h 08m 21.38s -19° 45' 18.8"
WDS 10084-1945 BU 911 AB (HD 87998) : 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 |
|
10084-1945 |
BU 911 |
AB |
315 |
4.1 |
1 |
Show |
|
10084-1945 |
BU 911 |
AC |
54 |
83.4 |
1 |
Show |
|
10074-1943 |
BU 218 |
|
146 |
0.4 |
15 |
Show |
|
10074-2000 |
ARA 664 |
|
2 |
13.3 |
20 |
Show |
|
10073-2011 |
DON1087 |
|
234 |
6.6 |
30 |
Show |
|
10066-1926 |
GWP1292 |
|
127 |
40.9 |
33 |
Show |
|
10066-1919 |
S 607 |
AB |
327 |
9.5 |
36 |
Show |
|
10066-1919 |
TOK 66 |
AC |
123 |
100.3 |
36 |
Show |
|
10066-1919 |
TOK 66 |
Ba,Bb |
47 |
0.2 |
37 |
Show |
|
10113-1949 |
GWP1309 |
|
189 |
7.0 |
42 |
Show |
|
10111-1922 |
XMI 97 |
|
300 |
17.9 |
45 |
Show |
|
10100-1901 |
GWP1305 |
|
143 |
26.8 |
51 |
Show |
|
10114-2016 |
UC 1891 |
AB |
60 |
9.5 |
54 |
Show |
|
10082-2038 |
LDS3958 |
|
|
75.0 |
54 |
Show |
|
10100-1845 |
UC 1887 |
|
32 |
6.4 |
65 |
Show |
|
10059-1851 |
ARA 408 |
|
308 |
8.3 |
65 |
Show |
|
10056-2038 |
ARA1082 |
|
124 |
11.6 |
66 |
Show |
|
10093-2051 |
ARA1084 |
|
196 |
13.5 |
68 |
Show |
|
10057-2049 |
ARA1083 |
|
274 |
15.4 |
74 |
Show |
|
10059-2054 |
LDS3955 |
|
131 |
4.1 |
78 |
Show |
|
10027-2010 |
DAM 715 |
|
114 |
16.1 |
84 |
Show |
|
10025-2006 |
ARA 662 |
|
95 |
10.8 |
85 |
Show |
|
10121-1837 |
SUB 4 |
|
193 |
399.4 |
87 |
Show |
|
10022-1946 |
B 781 |
|
341 |
2.3 |
88 |
Show |
|
10021-1921 |
WIS 165 |
|
229 |
987.5 |
92 |
Show |
|
10134-1847 |
LDS3965 |
|
97 |
37.1 |
93 |
Show |
|
10124-1832 |
ARA 410 |
|
181 |
10.3 |
94 |
Show |
|
10146-2028 |
ARA 665 |
|
61 |
11.4 |
97 |
Show |
|
10031-1837 |
GWP1276 |
|
288 |
20.2 |
101 |
Show |
|
10157-1951 |
ARA 666 |
AB |
1 |
20.7 |
104 |
Show |
|
10157-1951 |
ARA 666 |
AC |
217 |
11.2 |
104 |
Show |
|
10157-1951 |
ARA 666 |
BC |
194 |
30.2 |
104 |
Show |
|
10045-1814 |
RST3676 |
|
309 |
0.5 |
107 |
Show |
|
10027-2103 |
DON 383 |
|
214 |
4.3 |
111 |
Show |
|
10040-1806 |
BU 1072 |
AB |
53 |
12.7 |
117 |
Show |
|
10040-1806 |
SHJ 110 |
AC |
274 |
21.2 |
117 |
Show |
|
10040-1806 |
BU 1072 |
BC |
259 |
32.0 |
117 |
Show |
|
10014-1830 |
KPP 209 |
|
243 |
3.7 |
124 |
Show |
|
10166-2029 |
B 788 |
|
234 |
3.7 |
124 |
Show |
|
10140-1807 |
DAM2161 |
|
198 |
22.9 |
127 |
Show |
|
09593-1956 |
LDS 294 |
|
170 |
24.3 |
129 |
Show |
|
10168-2040 |
HLD 101 |
|
110 |
1.4 |
131 |
Show |
|
10152-1817 |
UC 1901 |
|
218 |
31.3 |
132 |
Show |
|
10157-1825 |
HLD 100 |
|
206 |
1.8 |
132 |
Show |
|
10143-1802 |
HU 459 |
|
95 |
1.3 |
134 |
Show |
|
10063-1735 |
GWP1288 |
|
264 |
30.3 |
134 |
Show |
|
10166-2054 |
SHN 132 |
|
-1 |
0.1 |
135 |
Show |
|
10007-2121 |
DON 380 |
|
283 |
2.9 |
145 |
Show |
|
10008-1809 |
ARA 220 |
|
6 |
7.7 |
145 |
Show |
|
10155-2130 |
ARA1472 |
|
332 |
6.7 |
146 |
Show |
|
10183-2029 |
LDS3975 |
|
309 |
31.5 |
146 |
|
|
WDS 10084-1945 : COMPONENTS
|
A |
B |
B |
pa=317.0°
sep=4.00"
| |
C |
pa=52.5°
sep=80.21"
| pa=55.4°
sep=80.69"
|
10084-1945 A
Name |
HD 87998 |
|
Coord arcsec 2000 |
100821.38-194518.8 |
|
Mag |
7.35 |
|
Spectral class |
G0V (yellow) |
|
PmRA |
-148.00 |
|
PmDE |
-329.0 |
|
SAO |
155757 |
|
HIP |
49668 |
|
Tycho2 |
6067-00598-1 |
|
HD |
87998 |
|
GC |
13929 |
|
BD |
BD-19 2926 |
|
Tycho2 |
6067-00598-1 |
|
Pflag |
|
|
RAmdeg |
152.08909011 |
|
DEmdeg |
-19.75521639 |
|
PmRA |
-144.0 |
|
PmDE |
-328.0 |
|
E RAmdeg |
5 |
|
E DEmdeg |
5 |
|
E pmRA |
1.4 |
|
E pmDE |
1.3 |
|
EpRAm |
1991.39 |
|
EpDEm |
1991.22 |
|
Num |
11 |
|
Q RAmdeg |
1.2 |
|
Q DEmdeg |
1.2 |
|
Q pmRA |
1.2 |
|
Q pmDE |
1.2 |
|
BTmag |
8.013 |
|
E BTmag |
0.016 |
|
VTmag |
7.354 |
|
E VTmag |
0.011 |
|
Prox |
43 |
|
TYC |
T |
|
HIP |
49668 |
|
CCDM |
A |
|
RAdeg |
152.08944500 |
|
DEdeg |
-19.75445028 |
|
EpRA 1990 |
1.65 |
|
EpDE 1990 |
1.59 |
|
E RAdeg |
4.7 |
|
E DEdeg |
5.1 |
|
Posflg |
|
|
Corr |
0.2 |
|
SAO |
155757 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0089 |
|
DE1950 |
|
|
PmDE1950 |
-0.333 |
|
Vmag |
7.2 |
|
SpType |
G0 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
13929 |
|
DM |
BD-19 2926 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
87998 |
|
M HD |
0 |
|
GC |
13929 |
|
RA1950rad |
2.64413686 |
|
DE1950rad |
-0.34043217 |
|
PmRA2000 |
-0.0087 |
|
PmDE2000 |
-0.328 |
|
Catalog |
H |
|
HIP |
49668 |
|
Proxy |
H |
|
RAhms |
10 08 21.47 |
|
DEdms |
-19 45 15.9 |
|
Vmag |
7.26 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
152.089 |
|
DEdeg |
-19.7544 |
|
AstroRef |
A |
|
Plx |
26.49 |
|
CCDM |
10084-1945 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
B |
|
M HIP |
AB |
|
Theta |
314 |
|
Rho |
4.334 |
|
HD |
87998 |
|
BD |
BD-19 2926 |
|
CD |
|
|
CP |
|
|
Dm number |
-19 2926 |
|
VIred |
0.69 |
|
SpType |
G2/G3V |
|
R SpType |
|
|
Coord arcsec 2000 |
100821.47-194515.9 |
|
HIP |
49668 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
2.6544619184 |
|
DErad |
-0.3447796759 |
|
Plx |
26.62 |
|
PmRA |
-148.66 |
|
PmDE |
-328.06 |
|
E RArad |
0.59 |
|
E DErad |
0.52 |
|
E Plx |
0.74 |
|
E pmRA |
0.66 |
|
E pmDE |
0.6 |
|
Hpmag |
7.3869 |
|
E Hpmag |
0.0009 |
|
SHp |
0.007 |
|
VA |
0 |
|
BV |
0.622 |
|
E BV |
0.009 |
|
VI |
0.69 |
|
Ccdm |
10084-1945 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-2.48 |
|
DDEs |
-18.8 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
3 |
|
Vmag |
7.2 |
|
Sp |
G0 |
|
PmNote |
* |
|
PmRA |
-126 |
|
PmDE |
-332 |
|
Dm number |
-19 2926 |
|
Cat1 |
BD |
|
Name2 |
155757 |
|
Cat2 |
SAO |
|
HD |
87998 |
|
M HD |
|
|
ADS BDS |
A 7655 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
10036S1915A |
|
HIC |
49668 |
|
10084-1945 B
Coord arcsec 2000 |
100821.19-194515.9 |
|
Mag |
11.21 |
|
PmRA |
-148.00 |
|
PmDE |
-329.0 |
|
Calc delta mag |
3.86 |
|
Calc coord |
yes |
|
Ccdm |
10084-1945 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
BU 911 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1880 |
|
Theta |
312 |
|
Rho |
4.6 |
|
Obs |
12 |
|
Vmag |
10.9 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A 7655 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
10036S1915B |
|
HIC |
49668 |
|
10084-1945 C
Coord arcsec 2000 |
100825.89-194430.0 |
|
Mag |
11.38 |
|
PmRA |
1.00 |
|
PmDE |
3.0 |
|
Calc delta mag |
4.03 |
|
Calc coord |
yes |
|
Ccdm |
10084-1945 |
|
RComp |
|
|
Comp |
C |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
BU 911 |
|
DRAs |
1.92 |
|
DDEs |
24.8 |
|
R dRAs |
66 |
|
Year |
1959 |
|
Theta |
062 |
|
Rho |
66.4 |
|
Obs |
11 |
|
Vmag |
9.2 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A 7655 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
10036S1915C |
|
HIC |
|
|