20018+0311 HJ 2920
20h 01m 46.93s +03° 10' 51.7" P.A. 165.00 sep 7.4 mag 10.90,10.90 Sp A0
Coord 2000 |
20018+0311 |
|
Discov num |
HJ 2920 |
|
Comp |
|
|
Coord arcsec 2000 |
20 01 46.93 +03 10 51.7 |
|
Date first |
1830 |
|
Date last |
2016 |
|
Obs |
12 |
|
Pa first |
172 |
|
Pa last |
164.6 |
|
P.A. Now (θ) |
164.6° |
|
Sep first |
4.0 |
|
Sep last |
7.413 |
|
Sep. Now (ρ) |
7.413" |
|
Mag pri |
10.90 |
|
Mag sec |
10.90 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
A0 (white) |
|
Pri motion ra |
-009 |
|
Sec motion ra |
-003 |
|
Pri motion dec |
+007 |
|
Sec motion dec |
-009 |
|
Notes |
|
|
rPM=1.499
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Aquila |
|
Gaia DR2 |
4247185273741563264 |
|
WDS 20018+0311 HJ 2920 : 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 |
20018+0311 |
HJ 2920 |
|
2000 |
5 |
166 |
7.3 |
10.90 |
10.90 |
A0 |
D |
200146.93+031051.7 |
20018+0311 |
HJ 2920 |
|
2011 |
6 |
165 |
7.3 |
10.90 |
10.90 |
A0 |
D |
200146.93+031051.7 |
20018+0311 |
HJ 2920 |
|
2016 |
8 |
165 |
7.4 |
10.90 |
10.90 |
A0 |
|
200146.93+031051.7 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20018+0311 HJ 2920 : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20018+0311 HJ 2920 : MEASURES
No records found.
WDS 20018+0311 : VIRTUAL EYEPIECE
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Pass over with the mouse cursor to display the catalog designation.
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WDS 20018+0311 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.