20344-4221 DON 988 AB
20h 34m 23.71s -42° 20' 11.0" P.A. 118.00 sep 0.6 mag 10.79,11.14 Sp G5
Coord 2000 |
20344-4221 |
|
Discov num |
DON 988 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 34 23.71 -42 20 11.0 |
|
Date first |
1932 |
|
Date last |
1991 |
|
Obs |
5 |
|
Pa first |
118 |
|
Pa last |
117.5 |
|
P.A. Now (θ) |
117.5° |
|
Sep first |
0.6 |
|
Sep last |
0.62 |
|
Sep. Now (ρ) |
0.62" |
|
Mag pri |
10.79 |
|
Mag sec |
11.14 |
|
delta mag (ΔM) |
0.35 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
+013 |
|
Sec motion ra |
|
|
Pri motion dec |
+004 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
20344-4221 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
20 34 24 -42 20 11 |
DON 988 AB |
1991 |
5 |
118 |
0.6 |
10.79 |
11.14 |
0.35 |
|
<=== |
Show |
HD 195706 |
|
20 34 24 -42 20 11 |
DON 988 AB,C |
2016 |
10 |
89 |
23.2 |
10.35 |
9.41 |
0.94 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Microscopium |
|
Tycho2 |
7958-01006-1 |
|
Gaia DR2 |
6679549017234812416 |
|
WDS 20344-4221 DON 988 AB : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
Don1937 |
Ma j |
Donner, H.F. |
1937MmRAS..65...51R |
Don1937 |
|
MemRAS 65, 51, 1937 |
|
Don1955 |
Ma - |
Donner, H.F. |
1955POMic..11....1R |
Don1955 |
|
Pub. Univ. Michigan Obs. 11, 1, 1955 |
|
Don1964 |
Ma j |
Donner, H.F. |
1964POMic...9...73R |
Don1964 |
|
Pub. Univ. Michigan Obs. 9, 73, 1964 |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
20344-4221 |
DON 988 |
AB |
1991 |
5 |
118 |
0.6 |
10.79 |
11.14 |
G5 |
|
203423.70-422011.0 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20344-4221 DON 988 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20344-4221 DON 988 AB : MEASURES
No records found.
WDS 20344-4221 : 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 20344-4221 : ALADIN DSS IMAGE @ 20h 34m 23.71s -42° 20' 11.0"
WDS 20344-4221 DON 988 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 |
|
20344-4221 |
DON 988 |
AB |
118 |
0.6 |
|
Show |
|
20344-4221 |
DON 988 |
AB,C |
89 |
23.2 |
|
Show |
|
20345-4216 |
NSN 481 |
|
91 |
1.7 |
5 |
Show |
|
20351-4226 |
AOT 81 |
|
185 |
14.1 |
10 |
Show |
|
20348-4244 |
AOT 80 |
|
246 |
11.1 |
24 |
Show |
|
20355-4241 |
AOT 82 |
|
201 |
4.2 |
24 |
Show |
|
20356-4243 |
AOT 83 |
|
116 |
7.8 |
27 |
Show |
|
20370-4208 |
AOT 86 |
|
303 |
9.1 |
32 |
Show |
|
20360-4147 |
AOT 84 |
|
137 |
18.9 |
38 |
Show |
|
20374-4202 |
CPO 89 |
|
284 |
16.0 |
38 |
Show |
|
20377-4236 |
UC 4238 |
|
182 |
83.6 |
41 |
Show |
|
20381-4251 |
UC 4240 |
|
351 |
45.0 |
52 |
Show |
|
20389-4253 |
AOT 88 |
|
55 |
15.8 |
60 |
Show |
|
20331-4116 |
BRT1111 |
|
162 |
4.3 |
66 |
Show |
|
20409-4224 |
I 1121 |
BC |
243 |
9.3 |
73 |
Show |
|
20409-4224 |
HJ 5211 |
AB |
299 |
20.0 |
73 |
Show |
|
20392-4131 |
KPP1483 |
|
59 |
11.1 |
73 |
Show |
|
20280-4237 |
RSS 36 |
|
267 |
35.7 |
73 |
Show |
|
20337-4104 |
B 490 |
|
64 |
1.2 |
77 |
Show |
|
20417-4253 |
TDT2475 |
|
303 |
1.0 |
87 |
Show |
|
20319-4054 |
GLI 259 |
AB |
159 |
4.1 |
91 |
Show |
|
20319-4054 |
I 1627 |
AC |
346 |
17.6 |
91 |
Show |
|
20400-4109 |
UC 4250 |
|
315 |
28.8 |
95 |
Show |
|
20391-4345 |
LDS 717 |
|
308 |
22.2 |
100 |
Show |
|
20276-4110 |
UC 4190 |
|
62 |
27.4 |
104 |
Show |
|
20338-4033 |
JC 18 |
AB |
224 |
4.4 |
107 |
Show |
|
20338-4033 |
JC 18 |
AC |
145 |
108.0 |
107 |
Show |
|
20267-4334 |
I 1420 |
|
358 |
0.3 |
112 |
Show |
|
20240-4231 |
DON 984 |
|
258 |
0.9 |
116 |
Show |
|
20400-4359 |
DON 990 |
AB |
39 |
0.3 |
117 |
Show |
|
20400-4359 |
DON 990 |
AC |
292 |
7.0 |
117 |
Show |
|
20239-4225 |
BU 763 |
AB |
180 |
0.5 |
117 |
Show |
|
20239-4225 |
I 1626 |
AC |
268 |
18.6 |
117 |
Show |
|
20239-4225 |
SEE 511 |
AD |
219 |
29.8 |
117 |
Show |
|
20289-4402 |
HJ 5201 |
|
117 |
10.7 |
120 |
Show |
|
20353-4017 |
SEE 421 |
AB |
7 |
14.7 |
124 |
Show |
|
20353-4017 |
KPP4396 |
AC |
51 |
4.2 |
124 |
Show |
|
20276-4038 |
RSS 547 |
|
12 |
10.0 |
128 |
Show |
|
20339-4431 |
I 127 |
BC |
209 |
0.6 |
131 |
Show |
|
20339-4431 |
I 127 |
AB |
50 |
62.3 |
131 |
Show |
|
20339-4431 |
DAM 325 |
AD |
91 |
49.9 |
131 |
Show |
|
20339-4431 |
DAM 325 |
AE |
101 |
70.0 |
131 |
Show |
|
20385-4425 |
I 1424 |
|
226 |
2.4 |
134 |
Show |
|
20235-4319 |
TDT2231 |
|
227 |
0.8 |
134 |
Show |
|
20225-4203 |
HJ 5190 |
AB |
312 |
40.0 |
134 |
Show |
|
20225-4203 |
HJ 5190 |
AC |
283 |
56.8 |
134 |
Show |
|
20427-4400 |
KPP3106 |
|
232 |
2.5 |
135 |
Show |
|
20348-3957 |
WG 258 |
|
239 |
8.5 |
142 |
Show |
|
20372-4445 |
TOK 369 |
|
245 |
0.5 |
148 |
Show |
|
20404-4012 |
WG 260 |
|
31 |
6.2 |
148 |
Show |
|
20296-4000 |
UC 4200 |
|
302 |
40.7 |
151 |
|
|
WDS 20344-4221 : COMPONENTS
|
A |
B |
B |
pa=125.2°
sep=0.50"
| |
C |
pa=88.9°
sep=17.19"
| pa=87.9°
sep=16.79"
|
20344-4221 A
Coord arcsec 2000 |
203423.71-422011.0 |
|
Mag |
10.79 |
|
Spectral class |
G5 (yellow) |
|
PmRA |
13.00 |
|
PmDE |
4.0 |
|
Tycho2 |
7958-01006-1 |
|
Tycho2 |
7958-01006-1 |
|
Pflag |
|
|
RAmdeg |
308.59877634 |
|
DEmdeg |
-42.33641368 |
|
PmRA |
17.1 |
|
PmDE |
-2.2 |
|
E RAmdeg |
24 |
|
E DEmdeg |
27 |
|
E pmRA |
1.4 |
|
E pmDE |
1.4 |
|
EpRAm |
1981.48 |
|
EpDEm |
1978.89 |
|
Num |
4 |
|
Q RAmdeg |
1.6 |
|
Q DEmdeg |
1.9 |
|
Q pmRA |
1.6 |
|
Q pmDE |
1.9 |
|
BTmag |
10.920 |
|
E BTmag |
0.054 |
|
VTmag |
10.348 |
|
E VTmag |
0.047 |
|
Prox |
231 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
308.59871750 |
|
DEdeg |
-42.33640278 |
|
EpRA 1990 |
1.67 |
|
EpDE 1990 |
1.64 |
|
E RAdeg |
29.3 |
|
E DEdeg |
33.6 |
|
Posflg |
P |
|
Corr |
-0.2 |
|
20344-4221 B
Coord arcsec 2000 |
203423.75-422011.3 |
|
Mag |
11.14 |
|
Calc delta mag |
0.35 |
|
Calc coord |
yes |
|
20344-4221 C
Coord arcsec 2000 |
203425.26-422010.7 |
|
Mag |
9.41 |
|
PmRA |
24.00 |
|
PmDE |
3.0 |
|
Tycho2 |
7958-00085-1 |
|
HD |
195706 |
|
Calc delta mag |
1.38 |
|
Calc coord |
yes |
|
Tycho2 |
7958-00085-1 |
|
Pflag |
|
|
RAmdeg |
308.60746823 |
|
DEmdeg |
-42.33629623 |
|
PmRA |
17.2 |
|
PmDE |
-1.0 |
|
E RAmdeg |
15 |
|
E DEmdeg |
17 |
|
E pmRA |
1.3 |
|
E pmDE |
1.3 |
|
EpRAm |
1987.63 |
|
EpDEm |
1986.12 |
|
Num |
5 |
|
Q RAmdeg |
0.4 |
|
Q DEmdeg |
2.1 |
|
Q pmRA |
0.4 |
|
Q pmDE |
2.0 |
|
BTmag |
10.559 |
|
E BTmag |
0.041 |
|
VTmag |
9.409 |
|
E VTmag |
0.023 |
|
Prox |
231 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
308.60741361 |
|
DEdeg |
-42.33629278 |
|
EpRA 1990 |
1.67 |
|
EpDE 1990 |
1.60 |
|
E RAdeg |
16.3 |
|
E DEdeg |
19.0 |
|
Posflg |
|
|
Corr |
-0.2 |
|