20310+3656 AC 18 AB (44 Cyg)
20h 30m 59.23s +36° 56' 09.1" P.A. 158.00 sep 2.2 mag 6.32,10.12 Sp F5Iab dist. 1041.67 pc (3397.93 l.y.)
Coord 2000 |
20310+3656 |
|
Discov num |
AC 18 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 30 59.23 +36 56 09.1 |
|
Date first |
1859 |
|
Date last |
1991 |
|
Obs |
18 |
|
Pa first |
155 |
|
Pa last |
157.8 |
|
P.A. Now (θ) |
157.8° |
|
Sep first |
2.5 |
|
Sep last |
2.16 |
|
Sep. Now (ρ) |
2.16" |
|
Mag pri |
6.32 |
|
Mag sec |
10.12 |
|
delta mag (ΔM) |
3.8 |
|
Spectral class |
F5Iab (yellow-white) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
+000 |
|
Pri motion dec |
-002 |
|
Sec motion dec |
-004 |
|
Notes |
N
(See Notes) |
|
rPM=0.559
Nature of this double is uncertain.
20310+3656 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
44 Cyg |
70135 |
20 30 59 +36 56 09 |
AC 18 AB |
1991 |
18 |
158 |
2.2 |
6.32 |
10.12 |
3.80 |
|
<=== |
Show |
|
70135 |
20 30 59 +36 56 09 |
KUI 98 AC |
2015 |
6 |
76 |
16.8 |
6.32 |
12.80 |
6.48 |
|
|
Show |
|
70135 |
20 30 59 +36 56 09 |
AC 18 AD |
2015 |
4 |
165 |
63.1 |
6.32 |
12.30 |
5.98 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
44 Cyg |
|
Constellation |
Cygnus |
|
SAO |
70135 |
|
HIP |
101214 |
|
Tycho2 |
2697-01634-1 |
|
Gaia DR2 |
2057760376738256384 |
|
HD |
195593 |
|
HR |
7847 |
|
GC |
28551 |
|
ADS |
13949 |
|
BD |
BD+36 4105 |
|
Flamsteed |
44 Cygni |
|
Flamsteed name |
44 Cyg |
|
Distance |
1041.67 |
|
Distance ly |
3397.93 |
|
WDS 20310+3656 AC 18 AB (44 Cyg) : NOTES
discov_num |
notes |
refcode |
AC 18 |
44 Cyg. |
|
REFERENCES
refcode |
metd |
author |
reference |
AC_1857 |
Ma - |
Clark, Alvan |
1857MNRAS..17..257C |
AC_1857 |
|
MNRAS 17, 257, 1857 |
|
AC_1859 |
Ma - |
Clark, Alvan |
1859MNRAS..20...55C |
AC_1859 |
|
MNRAS 20, 55, 1859 |
|
AC_1864 |
Ma j |
Clark, Alvan |
................... |
AC_1864 |
|
Harvard Observatory Log, scan by Jay Holberg. |
................... |
Kui1929 |
Pa - |
Kuiper, G.P., Schilt, van den Bos, W., and van Gent |
1929BAN.....5...49K |
Kui1929 |
+Po |
BAN 5, 49, 1929 |
|
Kui1930 |
orb - |
Kuiper, G.P. |
1930BAN.....5..231K |
Kui1930 |
|
BAN 5, 231, 1930 |
|
Kui1933 |
Ma - |
Kuiper, G.P. |
1933BAN.....7..129K |
Kui1933 |
|
BAN 7, 129, 1933 |
|
Kui1934a |
Ma - |
Kuiper, G.P. |
1934PASP...46..188K |
Kui1934a |
|
PASP 46, 188, 1934 |
|
Kui1934b |
Ma - |
Kuiper, G.P. |
1934PASP...46..285K |
Kui1934b |
|
PASP 46, 285, 1934 |
|
Kui1934c |
Ma - |
Kuiper, G.P. |
1934PASP...46..286K |
Kui1934c |
|
PASP 46, 286, 1934 |
|
Kui1934d |
Ma - |
Kuiper, G.P. |
1934PASP...46..359K |
Kui1934d |
|
PASP 46, 359, 1934 |
|
Kui1934e |
Ma j |
Kuiper, G.P. |
1934PASP...46..360K |
Kui1934e |
|
PASP 46, 360, 1934 |
|
Kui1934f |
Ma - |
Kuiper, G.P. |
1934PASP...46..361K |
Kui1934f |
|
PASP 46, 361, 1934 |
|
Kui1935a |
Ma - |
Kuiper, G.P. |
1935PASP...47..230K |
Kui1935a |
|
PASP 47, 230, 1935 |
|
Kui1935b |
Ma - |
Kuiper, G.P. |
1935PASP...47..267K |
Kui1935b |
|
PASP 47, 267, 1935 |
|
Kui1935c |
Ma - |
Kuiper, G.P. |
1935PASP...47..279K |
Kui1935c |
|
PASP 47, 279, 1935 |
|
Kui1935d |
Z - |
Kuiper, G.P. |
1935PASP...47...15K |
Kui1935d |
|
PASP 47, 15, 1935 |
|
Kui1935d |
|
(no dates given for measures; default date = decade of publication added.) |
|
Kui1935e |
- |
Kuiper, G.P. |
1935PASP...47..121K |
Kui1935e |
|
PASP 47, 121, 1935 |
|
Kui1936a |
Ma - |
Kuiper, G.P. |
1936ApJ....84..359K |
Kui1936a |
|
ApJ 84, 359, 1936 |
|
Kui1936b |
Ma j |
Kuiper, G.P. |
1936PASP...48...19K |
Kui1936b |
|
PASP 48, 19, 1936 |
|
Kui1936c |
Ma - |
Kuiper, G.P. |
1936PASP...48..221K |
Kui1936c |
|
PASP 48, 221, 1936 |
|
Kui1936d |
Ma - |
Kuiper, G.P. |
1936ApJ....84..478K |
Kui1936d |
|
ApJ 84, 478, 1936 |
|
Kui1937a |
Ma - |
Kuiper, G.P. |
1937ApJ....85..255K |
Kui1937a |
|
ApJ 85, 255, 1937 |
|
Kui1937b |
orb - |
Kuiper, G.P. |
1937ApJ....86..166K |
Kui1937b |
|
ApJ 86, 166, 1937 |
|
Kui1937c |
Ma - |
Kuiper, G.P. |
1937PASP...49..340K |
Kui1937c |
|
PASP 49, 340, 1937 |
|
Kui1938 |
Ma - |
Kuiper, G.P. |
1938HarAC.450....0K |
Kui1938 |
|
Harvard Announcement Card #450, 1938 |
|
Kui1939 |
Po - |
Kuiper, G.P. |
1939ApJ....89..548K |
Kui1939 |
|
ApJ 89, 548, 1939 |
|
Kui1940 |
Po - |
Kuiper, G.P. |
1940ApJ....91..269K |
Kui1940 |
|
ApJ 91, 269, 1940 |
|
Kui1942 |
Pa - |
Kuiper, G.P. |
1942ApJ....96..315K |
Kui1942 |
|
ApJ 96, 315, 1942 |
|
Kui1943 |
Mb - |
Kuiper, G.P. |
1943ApJ....97..275K |
Kui1943 |
|
ApJ 97, 275, 1943 |
|
Kui1948 |
Mb - |
Kuiper, G.P. |
1948ApJ...108..542K |
Kui1948 |
|
ApJ 108, 542, 1948 |
|
Kui1950 |
Xg - |
Kuiper, G.P. |
1950JO.....33....1K |
Kui1950 |
|
J. Obs. 33, 1, 1950 |
|
Kui1950 |
|
(Visual estimates from objective gratings used with several refractors, as cited |
|
Kui1950 |
|
by P. Baize. No dates given for measures; default = decade of publication added.) |
|
Kui1961a |
Ma - |
Kuiper, G.P. |
1961JO.....35...36K |
Kui1961a |
|
J. Obs. 35, 36, 1961 |
|
Kui1961b |
Ma j |
Kuiper, G.P. |
1961ApJS....6....1K |
Kui1961b |
|
ApJS 6, 1, 1961 |
|
Kui9999 |
- |
Kuiper, G.P. |
................... |
Kui9999 |
|
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 |
20310+3656 |
AC 18 |
AB |
1991 |
18 |
158 |
2.2 |
6.32 |
10.12 |
F5Iab |
N D |
203059.23+365609.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20310+3656 AC 18 AB (44 Cyg) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20310+3656 AC 18 AB (44 Cyg) : MEASURES
No records found.
WDS 20310+3656 (44 Cyg) : 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 20310+3656 (44 Cyg) : ALADIN DSS IMAGE @ 20h 30m 59.23s +36° 56' 09.1"
WDS 20310+3656 AC 18 AB (44 Cyg) : 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 |
|
20310+3656 |
AC 18 |
AB |
158 |
2.2 |
|
Show |
|
20310+3656 |
KUI 98 |
AC |
76 |
16.8 |
|
Show |
|
20310+3656 |
AC 18 |
AD |
165 |
63.1 |
|
Show |
|
20311+3652 |
SEI1148 |
|
281 |
24.5 |
4 |
Show |
|
20313+3654 |
TOB 188 |
|
262 |
17.0 |
5 |
Show |
|
20301+3636 |
KPP4204 |
AB |
213 |
7.1 |
23 |
Show |
|
20301+3636 |
SKF2852 |
AC |
206 |
6.5 |
23 |
Show |
|
20301+3636 |
SKF2852 |
BC |
83 |
1.0 |
23 |
Show |
|
20327+3711 |
SEI1158 |
AB |
109 |
20.9 |
26 |
Show |
|
20327+3711 |
TDT2352 |
Aa,Ab |
160 |
0.4 |
26 |
Show |
|
20288+3650 |
SEI1129 |
|
23 |
29.0 |
28 |
Show |
|
20289+3634 |
SEI1132 |
|
226 |
15.1 |
33 |
Show |
|
20323+3726 |
SEI1156 |
|
89 |
5.9 |
35 |
Show |
|
20308+3619 |
TDS1078 |
|
294 |
1.2 |
38 |
Show |
|
20324+3622 |
KPP3359 |
|
201 |
8.7 |
38 |
Show |
|
20288+3628 |
COU1958 |
|
105 |
0.5 |
39 |
Show |
|
20293+3731 |
WEI 35 |
CD |
202 |
12.1 |
40 |
Show |
|
20297+3733 |
ES 2509 |
|
241 |
3.3 |
41 |
Show |
|
20293+3731 |
WEI 35 |
BC |
98 |
89.3 |
41 |
Show |
|
20293+3731 |
WEI 35 |
AB |
214 |
4.2 |
41 |
Show |
|
20293+3731 |
WEI 35 |
AC |
100 |
87.6 |
41 |
Show |
|
20328+3736 |
TDT2355 |
|
57 |
2.3 |
46 |
Show |
|
20344+3725 |
SEI1171 |
|
201 |
17.4 |
50 |
Show |
|
20308+3749 |
SEI1146 |
AB |
42 |
10.2 |
53 |
Show |
|
20308+3749 |
SEI1147 |
AC |
286 |
14.5 |
53 |
Show |
|
20340+3737 |
SEI1170 |
|
28 |
17.3 |
55 |
Show |
|
20351+3725 |
SEI1179 |
|
69 |
27.3 |
57 |
Show |
|
20304+3753 |
TDT2328 |
|
45 |
0.5 |
58 |
Show |
|
20262+3712 |
HO 130 |
|
289 |
1.9 |
60 |
Show |
|
20321+3558 |
COU2133 |
AB |
29 |
2.4 |
60 |
Show |
|
20321+3558 |
COU2133 |
Aa,Ab |
119 |
0.1 |
60 |
Show |
|
20358+3635 |
ES 2510 |
|
317 |
6.8 |
62 |
Show |
|
20263+3728 |
AG 255 |
|
287 |
5.2 |
65 |
Show |
|
20322+3552 |
GRV 350 |
|
159 |
36.5 |
66 |
Show |
|
20277+3605 |
ES 2193 |
AB |
334 |
4.9 |
66 |
Show |
|
20277+3605 |
ES 2193 |
AC |
231 |
7.4 |
66 |
Show |
|
20277+3605 |
ES 2193 |
AD |
33 |
12.7 |
66 |
Show |
|
20257+3709 |
ES 2192 |
|
79 |
2.8 |
66 |
Show |
|
20364+3652 |
ES 247 |
|
147 |
5.4 |
66 |
Show |
|
20255+3708 |
DAM1041 |
|
256 |
2.8 |
67 |
Show |
|
20359+3729 |
SEI1186 |
|
189 |
12.3 |
68 |
Show |
|
20259+3727 |
SEI1121 |
|
207 |
28.1 |
69 |
Show |
|
20291+3550 |
HO 594 |
AB |
212 |
15.9 |
71 |
Show |
|
20291+3550 |
GRF 16 |
AC |
163 |
104.0 |
71 |
Show |
|
20359+3617 |
TDT2405 |
|
355 |
1.1 |
71 |
Show |
|
20368+3642 |
TDT2420 |
|
356 |
0.5 |
71 |
Show |
|
20315+3806 |
SEI1151 |
|
215 |
25.1 |
72 |
Show |
|
20369+3652 |
SEI1192 |
|
281 |
30.5 |
72 |
Show |
|
20257+3731 |
LDS1042 |
|
174 |
8.6 |
73 |
Show |
|
20359+3615 |
GII 52 |
Aa,Ab |
217 |
0.4 |
73 |
Show |
|
20359+3615 |
GII 52 |
AB |
344 |
3.9 |
73 |
|
|
WDS 20310+3656 : COMPONENTS
|
A |
B |
C |
B |
pa=161.9°
sep=2.10"
| |
C |
pa=72.1°
sep=13.66"
| pa=63.3°
sep=13.82"
| |
D |
pa=168.0°
sep=62.33"
| pa=168.2°
sep=60.24"
| pa=180.0°
sep=65.17"
|
20310+3656 A
Name |
44 Cyg |
|
Coord arcsec 2000 |
203059.23+365609.1 |
|
Mag |
6.32 |
|
Spectral class |
F5Iab (yellow-white) |
|
PmRA |
-1.00 |
|
PmDE |
-2.0 |
|
SAO |
70135 |
|
HIP |
101214 |
|
Tycho2 |
2697-01634-1 |
|
HD |
195593 |
|
HR |
7847 |
|
GC |
28551 |
|
BD |
BD+36 4105 |
|
Flamsteed |
44 Cygni |
|
Flamsteed name |
44 Cyg |
|
Tycho2 |
2697-01634-1 |
|
Pflag |
|
|
RAmdeg |
307.74678820 |
|
DEmdeg |
36.93584255 |
|
PmRA |
-1.3 |
|
PmDE |
-1.9 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
E pmRA |
1.5 |
|
E pmDE |
1.5 |
|
EpRAm |
1991.52 |
|
EpDEm |
1991.63 |
|
Num |
5 |
|
Q RAmdeg |
1.5 |
|
Q DEmdeg |
1.0 |
|
Q pmRA |
1.4 |
|
Q pmDE |
1.1 |
|
BTmag |
7.403 |
|
E BTmag |
0.015 |
|
VTmag |
6.321 |
|
E VTmag |
0.010 |
|
Prox |
22 |
|
TYC |
T |
|
HIP |
101214 |
|
CCDM |
A |
|
RAdeg |
307.74679194 |
|
DEdeg |
36.93584694 |
|
EpRA 1990 |
1.60 |
|
EpDE 1990 |
1.71 |
|
E RAdeg |
3.8 |
|
E DEdeg |
3.6 |
|
Posflg |
P |
|
Corr |
0.2 |
|
SAO |
70135 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0 |
|
DE1950 |
|
|
PmDE1950 |
-0.002 |
|
Vmag |
6.3 |
|
SpType |
F8p |
|
Double code |
|
|
Source |
70 |
|
CatNum |
28551 |
|
DM |
BD+36 4105 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
195593 |
|
M HD |
0 |
|
GC |
28551 |
|
RA1950rad |
5.36289926 |
|
DE1950rad |
0.64169487 |
|
PmRA2000 |
0.0002 |
|
PmDE2000 |
-0.004 |
|
Catalog |
H |
|
HIP |
101214 |
|
Proxy |
H |
|
RAhms |
20 30 59.23 |
|
DEdms |
+36 56 09.1 |
|
Vmag |
6.21 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
307.747 |
|
DEdeg |
36.9358 |
|
AstroRef |
A |
|
Plx |
2.06 |
|
CCDM |
20310+3656 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
158 |
|
Rho |
2.172 |
|
HD |
195593 |
|
BD |
BD+36 4105 |
|
CD |
|
|
CP |
|
|
Dm number |
+36 4105 |
|
VIred |
1.2 |
|
SpType |
F5Iab |
|
R SpType |
|
|
Coord arcsec 2000 |
203059.23+365609.1 |
|
HIP |
101214 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
5.3711947422 |
|
DErad |
0.6446521868 |
|
Plx |
0.96 |
|
PmRA |
0.31 |
|
PmDE |
-4.44 |
|
E RArad |
0.26 |
|
E DErad |
0.29 |
|
E Plx |
0.38 |
|
E pmRA |
0.29 |
|
E pmDE |
0.31 |
|
Hpmag |
6.3529 |
|
E Hpmag |
0.0009 |
|
SHp |
0.009 |
|
VA |
0 |
|
BV |
0.969 |
|
E BV |
0.006 |
|
VI |
1.2 |
|
Ccdm |
20310+3656 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-0.79 |
|
DDEs |
8.6 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
4 |
|
Vmag |
6.3 |
|
Sp |
F8 |
|
PmNote |
* |
|
PmRA |
-6 |
|
PmDE |
-11 |
|
Dm number |
+36 4105 |
|
Cat1 |
BD |
|
Name2 |
+36 2033 |
|
Cat2 |
AGK2/3 |
|
HD |
195593 |
|
M HD |
|
|
ADS BDS |
A13949 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
20272N3636A |
|
HIC |
101214 |
|
20310+3656 B
Coord arcsec 2000 |
203059.28+365607.1 |
|
Mag |
10.12 |
|
PmRA |
0.00 |
|
PmDE |
-4.0 |
|
Calc delta mag |
3.8 |
|
Calc coord |
yes |
|
Ccdm |
20310+3656 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
AC 18 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1958 |
|
Theta |
159 |
|
Rho |
2.0 |
|
Obs |
11 |
|
Vmag |
11.3 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A13949 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
20272N3636B |
|
HIC |
101214 |
|
20310+3656 C
Coord arcsec 2000 |
203100.31+365613.3 |
|
Mag |
12.8 |
|
Calc delta mag |
6.48 |
|
Calc coord |
yes |
|
Ccdm |
20310+3656 |
|
RComp |
|
|
Comp |
C |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
KUI 98 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1935 |
|
Theta |
076 |
|
Rho |
16.5 |
|
Obs |
2 |
|
Vmag |
12.8 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A13949 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
20272N3636C |
|
HIC |
|
|
20310+3656 D
Coord arcsec 2000 |
203100.31+365508.1 |
|
Mag |
12.3 |
|
PmRA |
0.00 |
|
PmDE |
-2.0 |
|
Calc delta mag |
5.98 |
|
Calc coord |
yes |
|
Ccdm |
20310+3656 |
|
RComp |
|
|
Comp |
D |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
AC 18 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1913 |
|
Theta |
166 |
|
Rho |
63.0 |
|
Obs |
1 |
|
Vmag |
12.3 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A13949 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
20272N3636D |
|
HIC |
|
|