20120+2100 HJ 907 AC
20h 12m 02.35s +20° 59' 06.1" P.A. 229.00 sep 20.1 mag 9.77,14.30 Sp K2
Coord 2000 |
20120+2100 |
|
Discov num |
HJ 907 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 12 02.35 +20 59 06.1 |
|
Date first |
1903 |
|
Date last |
2015 |
|
Obs |
9 |
|
Pa first |
245 |
|
Pa last |
229.2 |
|
P.A. Now (θ) |
229.2° |
|
Sep first |
8.8 |
|
Sep last |
20.111 |
|
Sep. Now (ρ) |
20.111" |
|
Mag pri |
9.77 |
|
Mag sec |
14.30 |
|
delta mag (ΔM) |
4.53 |
|
Spectral class |
K2 (yellow-orange) |
|
Pri motion ra |
+066 |
|
Sec motion ra |
|
|
Pri motion dec |
+072 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
20120+2100 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 351541 |
|
20 12 02 +20 59 06 |
HJ 907 AB |
2015 |
18 |
137 |
5.7 |
9.77 |
10.33 |
0.56 |
|
|
Show |
|
|
20 12 02 +20 59 06 |
HJ 907 AC |
2015 |
9 |
229 |
20.1 |
9.77 |
14.30 |
4.53 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagitta |
|
Tycho2 |
1630-00880-1 |
|
Gaia DR2 |
1828856383861873920 |
|
HD |
351541 |
|
WDS 20120+2100 HJ 907 AC : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
HJ_1826 |
Mb - |
Herschel, J.F.W. |
1826MmRAS...2..459H |
HJ_1826 |
|
MemRAS 2, 459, 1826 |
|
HJ_1829a |
Mb - |
Herschel, J.F.W. |
1829MmRAS...3...47H |
HJ_1829a |
|
MemRAS 3, 47, 1829 |
|
HJ_1829b |
Mb - |
Herschel, J.F.W. |
1829MmRAS...3..177H |
HJ_1829b |
|
MemRAS 3, 177, 1829 |
|
HJ_1831 |
Ma - |
Herschel, J.F.W. |
1831MmRAS...4..331H |
HJ_1831 |
+Mb |
MemRAS 4, part 2, 331, 1831 |
|
HJ_1833a |
Ma - |
Herschel, J.F.W. |
1833MmRAS...5...13H |
HJ_1833a |
+Mb |
MemRAS 5, 13, 1833 |
|
HJ_1833b |
orb - |
Herschel, J.F.W. |
1833MmRAS...5..171H |
HJ_1833b |
|
MemRAS 5, 171, 1833 |
|
HJ_1833c |
Mb - |
Herschel, J.F.W. |
1833MmRAS...6....1H |
HJ_1833c |
|
MemRAS 6, 1, 1833 |
|
HJ_1833d |
orb - |
Herschel, J.F.W. |
1833MmRAS...6..149H |
HJ_1833d |
|
MemRAS 6, 149, 1833 |
|
HJ_1835 |
Ma - |
Herschel, J.F.W. |
1835MmRAS...8...37H |
HJ_1835 |
+Mb |
MemRAS 8, 37, 1835 |
|
HJ_1836 |
Mb - |
Herschel, J.F.W. |
1836MmRAS...9..193H |
HJ_1836 |
|
MemRAS 9, 193, 1836 |
|
HJ_1847a |
Ma j |
Herschel, J.F.W. |
. |
HJ_1847a |
+Mb |
Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838) |
|
HJ_1847b |
Ma j |
Herschel, J.F.W. |
. |
HJ_1847b |
|
Cape Results, London, 1847 |
|
HJ_1850 |
orb - |
Herschel, J.F.W. |
1850MmRAS..18...47H |
HJ_1850 |
|
MemRAS 18, 47, 1850 |
|
HJ_1870 |
Mb - |
Herschel, J.F.W. |
1870MmRAS..38....1H |
HJ_1870 |
|
MemRAS 38, 1, 1870 |
|
HJ_1874A |
- |
Herschel, J.F.W. |
1874MNRAS..35...28B |
HJ_1874A |
|
cited by Burnham (MNRAS 35, 28, 1874) |
|
HJ_1875A |
Ma - |
Herschel, J.F.W. |
1875AN.....85..323D |
HJ_1875A |
+Mb |
cited by Doberck, 1875 (see Dob1875b,f,g,h) |
|
HJ_1880A |
Ma - |
Herschel, J.F.W. |
1880Obs.....3..508G |
HJ_1880A |
+Mb |
cited by Gledhill (Obs 3, 508, 1880) |
|
HJ_1880B |
Mb - |
Herschel, J.F.W. |
1880MNRAS..40..497B |
HJ_1880B |
|
cited by Burnham (MNRAS 40, 497, 1880) |
|
HJ_1897A |
Ma j |
Herschel, J.F.W. |
1897MNRAS..57..541S |
HJ_1897A |
|
cited by See (MNRAS 57, 541, 1897) |
|
HJ_1905A |
Ma - |
Herschel, J.F.W. |
1905LicOB...3..147A |
HJ_1905A |
+Mb |
cited by Aitken (Lick Obs. Bull. 3, 147, 1905) |
|
HJ_1906A |
Ma - |
Herschel, J.F.W. |
1906MmRAS..56....1L |
HJ_1906A |
+Mb |
cited by Lewis (MemRAS 56, 1, 1906) |
|
HJ_1906B |
Ma - |
Herschel, J.F.W. |
1906QB821.B972..... |
HJ_1906B |
+Mb |
cited in BDS (Burnham Double Star Cat.), 1906 |
|
HJ_1927A |
Mb - |
Herschel, J.F.W. |
1927sdsc.book...... |
HJ_1927A |
|
cited in SDS (Southern Double Star Catalog), 1927 |
|
HJ_1932A |
Mb - |
Herschel, J.F.W. |
1932QB821.A43...... |
HJ_1932A |
|
cited in ADS (Aitken Double Star Cat.), 1932 |
|
HJ_9999 |
M j |
Herschel, J.F.W. |
................... |
HJ_9999 |
+Ma |
Unpublished, manuscript or reference not found. |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
20120+2100 |
HJ 907 |
AC |
1903 |
1 |
245 |
8.8 |
9.77 |
14.30 |
K2 |
|
201202.35+205906.1 |
20120+2100 |
HJ 907 |
AC |
2008 |
2 |
230 |
19.4 |
9.77 |
14.30 |
K2 |
|
201202.35+205906.1 |
20120+2100 |
HJ 907 |
AC |
2015 |
5 |
229 |
20.1 |
9.77 |
14.30 |
K2 |
|
201202.35+205906.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20120+2100 HJ 907 AC : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20120+2100 HJ 907 AC : MEASURES
No records found.
WDS 20120+2100 : 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 20120+2100 : ALADIN DSS IMAGE @ 20h 12m 02.35s +20° 59' 06.1"
WDS 20120+2100 HJ 907 AC : 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 |
|
20120+2100 |
HJ 907 |
AB |
137 |
5.7 |
|
Show |
|
20120+2100 |
HJ 907 |
AC |
229 |
20.1 |
|
Show |
|
20113+2056 |
J 1875 |
|
100 |
8.8 |
10 |
Show |
|
20124+2043 |
NSN 730 |
|
146 |
3.2 |
17 |
Show |
|
20131+2107 |
GRV 323 |
|
204 |
19.0 |
17 |
Show |
|
20113+2121 |
HO 587 |
|
65 |
11.5 |
25 |
Show |
|
20124+2124 |
DAM1255 |
|
23 |
7.1 |
26 |
Show |
|
20099+2100 |
S 737 |
|
128 |
101.0 |
30 |
Show |
|
20099+2055 |
STF2637 |
AB |
331 |
11.6 |
30 |
Show |
|
20099+2055 |
STF2637 |
AD |
226 |
172.8 |
30 |
Show |
|
20099+2055 |
STF2637 |
AC |
222 |
91.9 |
30 |
Show |
|
20099+2055 |
STF2637 |
BC |
215 |
95.7 |
30 |
Show |
|
20108+2029 |
HDS2875 |
|
231 |
0.3 |
35 |
Show |
|
20119+2020 |
J 1876 |
|
99 |
8.2 |
40 |
Show |
|
20102+2131 |
TDT2042 |
|
359 |
0.6 |
42 |
Show |
|
20136+2021 |
BU 1484 |
|
323 |
23.7 |
45 |
Show |
|
20138+2021 |
HJ 2941 |
|
109 |
6.2 |
45 |
Show |
|
20115+2013 |
GRV 320 |
|
152 |
31.3 |
47 |
Show |
|
20153+2120 |
J 3067 |
|
140 |
6.3 |
50 |
Show |
|
20154+2045 |
BRT2469 |
|
60 |
3.9 |
50 |
Show |
|
20132+2145 |
J 1194 |
|
115 |
6.3 |
50 |
Show |
|
20136+2145 |
J 834 |
|
277 |
2.3 |
51 |
Show |
|
20086+2041 |
BRT2467 |
|
55 |
4.4 |
52 |
Show |
|
20082+2105 |
J 1168 |
|
193 |
0.9 |
55 |
Show |
|
20163+2033 |
HDS2888 |
|
283 |
0.6 |
66 |
Show |
|
20093+2004 |
HU 355 |
|
352 |
1.2 |
68 |
Show |
|
20072+2106 |
STF2631 |
|
339 |
4.7 |
68 |
Show |
|
20148+2159 |
HDS2886 |
|
64 |
1.0 |
71 |
Show |
|
20166+2134 |
BRT2524 |
|
288 |
5.2 |
73 |
Show |
|
20076+2139 |
TDT2000 |
|
71 |
0.7 |
75 |
Show |
|
20123+2215 |
J 3057 |
|
104 |
6.7 |
77 |
Show |
|
20134+2214 |
J 3061 |
|
267 |
5.4 |
78 |
Show |
|
20114+2217 |
COU 217 |
AB |
343 |
1.5 |
79 |
Show |
|
20114+2217 |
COU 217 |
AC |
291 |
1.5 |
79 |
Show |
|
20156+1958 |
ROE 101 |
AB |
53 |
12.7 |
79 |
Show |
|
20156+1958 |
ROE 101 |
AC |
187 |
40.9 |
79 |
Show |
|
20156+1958 |
ROE 101 |
AD |
289 |
11.9 |
79 |
Show |
|
20156+1958 |
ROE 101 |
AE |
59 |
46.1 |
79 |
Show |
|
20141+2213 |
STF2655 |
AB |
3 |
6.2 |
80 |
Show |
|
20141+2213 |
STF2655 |
AC |
154 |
60.5 |
80 |
Show |
|
20112+2222 |
GRV 319 |
|
352 |
69.3 |
84 |
Show |
|
20124+2224 |
GRV 322 |
AB |
187 |
54.2 |
86 |
Show |
|
20124+2224 |
GRV 322 |
AC |
180 |
94.9 |
86 |
Show |
|
20177+2025 |
J 2308 |
BC |
297 |
5.7 |
87 |
Show |
|
20134+2224 |
TDT2101 |
|
334 |
0.5 |
87 |
Show |
|
20177+2025 |
COU 219 |
Aa,Ab |
109 |
0.4 |
87 |
Show |
|
20177+2025 |
J 2308 |
AB |
283 |
37.0 |
87 |
Show |
|
20177+2025 |
J 2308 |
AC |
284 |
42.5 |
87 |
Show |
|
20177+2025 |
BTG 4 |
AD |
170 |
33.8 |
87 |
Show |
|
20177+2025 |
BTG 4 |
AE |
267 |
28.9 |
87 |
Show |
|
20176+2142 |
TDT2144 |
|
72 |
0.7 |
89 |
|
|
WDS 20120+2100 : COMPONENTS
|
A |
B |
B |
pa=139.2°
sep=5.49"
| |
C |
pa=227.2°
sep=19.36"
| pa=243.2°
sep=19.94"
|
20120+2100 A
Name |
HD 351541 |
|
Coord arcsec 2000 |
201202.35+205906.1 |
|
Mag |
9.77 |
|
Spectral class |
K2 (yellow-orange) |
|
PmRA |
66.00 |
|
PmDE |
72.0 |
|
Tycho2 |
1630-00880-1 |
|
HD |
351541 |
|
Tycho2 |
1630-00880-1 |
|
Pflag |
|
|
RAmdeg |
303.00981105 |
|
DEmdeg |
20.98504233 |
|
PmRA |
65.1 |
|
PmDE |
74.0 |
|
E RAmdeg |
20 |
|
E DEmdeg |
27 |
|
E pmRA |
1.1 |
|
E pmDE |
1.1 |
|
EpRAm |
1988.20 |
|
EpDEm |
1985.05 |
|
Num |
4 |
|
Q RAmdeg |
1.5 |
|
Q DEmdeg |
2.2 |
|
Q pmRA |
1.5 |
|
Q pmDE |
2.3 |
|
BTmag |
10.725 |
|
E BTmag |
0.048 |
|
VTmag |
9.774 |
|
E VTmag |
0.030 |
|
Prox |
59 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
303.00965111 |
|
DEdeg |
20.98486583 |
|
EpRA 1990 |
1.76 |
|
EpDE 1990 |
1.42 |
|
E RAdeg |
19.5 |
|
E DEdeg |
27.6 |
|
Posflg |
|
|
Corr |
0.3 |
|
20120+2100 B
Coord arcsec 2000 |
201202.61+205901.9 |
|
Mag |
10.33 |
|
PmRA |
-16.00 |
|
PmDE |
108.0 |
|
Calc delta mag |
0.56 |
|
Calc coord |
yes |
|
20120+2100 C
Coord arcsec 2000 |
201201.34+205853.0 |
|
Mag |
14.3 |
|
Calc delta mag |
4.53 |
|
Calc coord |
yes |
|