20209+1948 HJ 2954 AB
20h 20m 50.62s +19° 47' 52.1" P.A. 303.00 sep 3.1 mag 10.47,10.54 Sp A3
Coord 2000 |
20209+1948 |
|
Discov num |
HJ 2954 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 20 50.62 +19 47 52.1 |
|
Date first |
1831 |
|
Date last |
2018 |
|
Obs |
12 |
|
Pa first |
300 |
|
Pa last |
302.6 |
|
P.A. Now (θ) |
302.6° |
|
Sep first |
1.5 |
|
Sep last |
3.075 |
|
Sep. Now (ρ) |
3.075" |
|
Mag pri |
10.47 |
|
Mag sec |
10.54 |
|
delta mag (ΔM) |
0.07 |
|
Spectral class |
A3 (white) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
-062 |
|
Pri motion dec |
-012 |
|
Sec motion dec |
+034 |
|
Notes |
|
|
rPM=1.126
This double is not physical.
20209+1948 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
20 20 51 +19 47 52 |
HJ 2954 AB |
2018 |
12 |
303 |
3.1 |
10.47 |
10.54 |
0.07 |
|
<=== |
Show |
|
|
20 20 51 +19 47 54 |
HJ 2954 BC |
2015 |
5 |
292 |
23.1 |
10.54 |
13.00 |
2.46 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagitta |
|
Tycho2 |
1639-02174-2 |
|
Gaia DR2 |
1816513468172444672 |
|
WDS 20209+1948 HJ 2954 AB : 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 |
20209+1948 |
HJ 2954 |
AB |
2000 |
9 |
304 |
3.1 |
10.47 |
10.54 |
A3 |
D |
202050.62+194752.1 |
20209+1948 |
HJ 2954 |
AB |
2001 |
10 |
303 |
3.0 |
10.47 |
10.54 |
A3 |
D |
202050.62+194752.1 |
20209+1948 |
HJ 2954 |
AB |
2009 |
11 |
303 |
3.0 |
10.47 |
10.54 |
A3 |
D |
202050.62+194752.1 |
20209+1948 |
HJ 2954 |
AB |
2018 |
12 |
303 |
3.1 |
10.47 |
10.54 |
A3 |
|
202050.62+194752.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20209+1948 HJ 2954 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20209+1948 HJ 2954 AB : MEASURES
No records found.
WDS 20209+1948 : 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 20209+1948 : ALADIN DSS IMAGE @ 20h 20m 50.62s +19° 47' 52.1"
WDS 20209+1948 HJ 2954 AB : 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 |
|
20209+1948 |
HJ 2954 |
AB |
303 |
3.1 |
|
Show |
|
20209+1948 |
HJ 2954 |
BC |
292 |
23.1 |
1 |
Show |
|
20216+1930 |
COU 327 |
AB |
245 |
0.2 |
22 |
Show |
|
20216+1930 |
COU 327 |
AB,C |
132 |
4.1 |
22 |
Show |
|
20195+1954 |
J 836 |
|
251 |
3.0 |
22 |
Show |
|
20224+2006 |
BUP9009 |
|
|
47.1 |
29 |
Show |
|
20196+1925 |
BRT2525 |
|
60 |
1.9 |
30 |
Show |
|
20187+2001 |
HDS2901 |
|
46 |
0.3 |
33 |
Show |
|
20183+2002 |
HJ 912 |
AB |
78 |
5.1 |
39 |
Show |
|
20183+2002 |
HJ 912 |
AC |
170 |
89.6 |
39 |
Show |
|
20230+2020 |
HDS2911 |
|
333 |
0.4 |
44 |
Show |
|
20227+2023 |
J 3080 |
|
292 |
7.4 |
45 |
Show |
|
20228+2023 |
J 3081 |
|
|
6.2 |
45 |
Show |
|
20178+1944 |
J 3072 |
|
91 |
5.8 |
47 |
Show |
|
20244+1935 |
STF2679 |
AB |
77 |
24.7 |
52 |
Show |
|
20244+1935 |
STF2679 |
AC |
150 |
38.6 |
52 |
Show |
|
20178+1917 |
TDT2146 |
|
307 |
0.7 |
54 |
Show |
|
20173+2009 |
J 3071 |
|
219 |
6.1 |
55 |
Show |
|
20186+1905 |
J 835 |
|
45 |
3.4 |
57 |
Show |
|
20177+2025 |
COU 219 |
Aa,Ab |
109 |
0.4 |
58 |
Show |
|
20177+2025 |
J 2308 |
AB |
283 |
37.0 |
58 |
Show |
|
20177+2025 |
J 2308 |
AC |
284 |
42.5 |
58 |
Show |
|
20177+2025 |
BTG 4 |
AD |
170 |
33.8 |
58 |
Show |
|
20177+2025 |
BTG 4 |
AE |
267 |
28.9 |
58 |
Show |
|
20177+2025 |
J 2308 |
BC |
297 |
5.7 |
59 |
Show |
|
20200+1848 |
HU 359 |
|
179 |
0.2 |
61 |
Show |
|
20243+1909 |
HU 361 |
|
198 |
0.6 |
63 |
Show |
|
20167+1925 |
GCB 52 |
|
53 |
4.3 |
63 |
Show |
|
20193+2047 |
TDT2166 |
AB |
20 |
2.5 |
64 |
Show |
|
20167+1923 |
J 3068 |
|
133 |
2.6 |
65 |
Show |
|
20162+1927 |
FMR 158 |
|
41 |
22.1 |
69 |
Show |
|
20231+1844 |
LDS5905 |
|
116 |
3.5 |
72 |
Show |
|
20231+2052 |
A 288 |
|
296 |
0.2 |
72 |
Show |
|
20156+1958 |
ROE 101 |
AB |
53 |
12.7 |
75 |
Show |
|
20156+1958 |
ROE 101 |
AC |
187 |
40.9 |
75 |
Show |
|
20156+1958 |
ROE 101 |
AD |
289 |
11.9 |
75 |
Show |
|
20156+1958 |
ROE 101 |
AE |
59 |
46.1 |
75 |
Show |
|
20190+2058 |
KPP1850 |
|
121 |
14.3 |
76 |
Show |
|
20163+2033 |
HDS2888 |
|
283 |
0.6 |
78 |
Show |
|
20153+1937 |
UC 249 |
|
165 |
83.5 |
80 |
Show |
|
20203+1826 |
J 3075 |
|
104 |
4.9 |
84 |
Show |
|
20267+1940 |
GWP2949 |
|
267 |
111.9 |
84 |
Show |
|
20204+1825 |
J 3076 |
|
209 |
5.9 |
84 |
Show |
|
20201+1823 |
DAM 211 |
AB |
166 |
7.0 |
86 |
Show |
|
20201+1823 |
DAM 211 |
AC |
233 |
7.6 |
86 |
Show |
|
20222+2116 |
BRT2470 |
|
221 |
1.9 |
90 |
Show |
|
20160+1850 |
J 508 |
|
146 |
2.9 |
90 |
Show |
|
20190+2117 |
GRV 329 |
|
339 |
66.7 |
93 |
Show |
|
20158+1849 |
J 507 |
|
56 |
6.1 |
94 |
Show |
|
20154+2045 |
BRT2469 |
|
60 |
3.9 |
96 |
Show |
|
20182+1820 |
HU 357 |
|
195 |
1.8 |
96 |
|
|
WDS 20209+1948 : COMPONENTS
|
A |
B |
B |
pa=327.3°
sep=2.61"
| |
C |
pa=296.8°
sep=24.13"
| pa=293.3°
sep=21.92"
|
20209+1948 A
Coord arcsec 2000 |
202050.62+194752.1 |
|
Mag |
10.47 |
|
Spectral class |
A3 (white) |
|
PmRA |
3.00 |
|
PmDE |
-12.0 |
|
Tycho2 |
1639-02174-2 |
|
Tycho2 |
1639-02174-2 |
|
Pflag |
|
|
RAmdeg |
305.21018129 |
|
DEmdeg |
19.79824640 |
|
PmRA |
-1.3 |
|
PmDE |
-4.0 |
|
E RAmdeg |
35 |
|
E DEmdeg |
41 |
|
E pmRA |
1.9 |
|
E pmDE |
1.9 |
|
EpRAm |
1987.90 |
|
EpDEm |
1986.86 |
|
Num |
2 |
|
Q RAmdeg |
|
|
Q DEmdeg |
|
|
Q pmRA |
|
|
Q pmDE |
|
|
BTmag |
10.674 |
|
E BTmag |
0.055 |
|
VTmag |
10.472 |
|
E VTmag |
0.067 |
|
Prox |
30 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
305.21018417 |
|
DEdeg |
19.79825556 |
|
EpRA 1990 |
1.71 |
|
EpDE 1990 |
1.71 |
|
E RAdeg |
35.9 |
|
E DEdeg |
41.9 |
|
Posflg |
D |
|
Corr |
0.0 |
|
20209+1948 B
Coord arcsec 2000 |
202050.52+194754.3 |
|
Coord calc |
202050.52+194754.3 |
|
Mag |
10.54 |
|
PmRA |
-62.00 |
|
PmDE |
34.0 |
|
Tycho2 |
1639-02174-1 |
|
HD |
351977 |
|
Calc delta mag |
0.07 |
|
Tycho2 |
1639-02174-1 |
|
Pflag |
|
|
RAmdeg |
305.21093221 |
|
DEmdeg |
19.79782032 |
|
PmRA |
-0.6 |
|
PmDE |
-3.1 |
|
E RAmdeg |
33 |
|
E DEmdeg |
39 |
|
E pmRA |
1.9 |
|
E pmDE |
1.9 |
|
EpRAm |
1988.28 |
|
EpDEm |
1987.23 |
|
Num |
2 |
|
Q RAmdeg |
|
|
Q DEmdeg |
|
|
Q pmRA |
|
|
Q pmDE |
|
|
BTmag |
10.539 |
|
E BTmag |
0.050 |
|
VTmag |
10.544 |
|
E VTmag |
0.073 |
|
Prox |
30 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
305.21093389 |
|
DEdeg |
19.79782750 |
|
EpRA 1990 |
1.70 |
|
EpDE 1990 |
1.65 |
|
E RAdeg |
33.9 |
|
E DEdeg |
40.3 |
|
Posflg |
|
|
Corr |
-0.1 |
|
20209+1948 C
Coord arcsec 2000 |
202049.09+194803.0 |
|
Mag |
13 |
|
PmRA |
-3.00 |
|
PmDE |
-4.0 |
|
Calc delta mag |
2.53 |
|
Calc coord |
yes |
|