20154+6412 MLR 60 AB
20h 15m 21.50s +64° 11' 55.6" P.A. 173.00 sep 0.2 mag 8.46,8.50 Sp G5 dist. 68.97 pc (224.98 l.y.)
Coord 2000 |
20154+6412 |
|
Discov num |
MLR 60 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 15 21.50 +64 11 55.6 |
|
Date first |
1970 |
|
Date last |
2008 |
|
Obs |
24 |
|
Pa first |
20 |
|
Pa last |
173.2 |
|
P.A. Now (θ) |
11.4° |
|
Sep first |
0.2 |
|
Sep last |
0.249 |
|
Sep. Now (ρ) |
0.18" |
|
Mag pri |
8.46 |
|
Mag sec |
8.50 |
|
delta mag (ΔM) |
0.04 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
+178 |
|
Sec motion ra |
|
|
Pri motion dec |
+232 |
|
Sec motion dec |
|
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
20154+6412 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
18780 |
20 15 22 +64 11 56 |
MLR 60 AB |
2008 |
24 |
173 |
0.2 |
8.46 |
8.50 |
0.04 |
Y |
<=== |
Show |
|
|
20 15 22 +64 11 56 |
LDS 5245 AC |
1960 |
1 |
122 |
20.0 |
8.46 |
17.03 |
8.57 |
|
|
Show |
|
|
20 15 22 +64 11 56 |
SHY 772 AD |
2016 |
4 |
247 |
999.9 |
8.46 |
10.12 |
1.66 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Draco |
|
SAO |
18780 |
|
HIP |
99832 |
|
Tycho2 |
4240-00516-1 |
|
Gaia DR2 |
2244572934213430272 |
|
HD |
193215 |
|
BD |
BD+63 1608 |
|
Distance |
68.97 |
|
Distance ly |
224.98 |
|
ORBITAL ELEMENTS
Period (P) | 50y | |
Periastron (T) | 1963.9y | |
Semi-major axis (a) | 0.239a | |
Eccentricity (e) | 0.035 | |
Inclination (i) | 107.5° | |
Longitude of periastron (ω) | 68.2° | |
Node (Ω) | 176° | |
Notes | n | |
Reference | Doc2012j | |
Equinox | 2000 | |
Last observation | 2008 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
188.2 |
0.200 |
2001 |
185.3 |
0.213 |
2002 |
182.8 |
0.224 |
2003 |
180.4 |
0.231 |
2004 |
178.1 |
0.235 |
2005 |
175.9 |
0.236 |
2006 |
173.6 |
0.233 |
2007 |
171.3 |
0.226 |
2008 |
168.8 |
0.216 |
2009 |
165.9 |
0.203 |
2010 |
162.7 |
0.187 |
2011 |
158.8 |
0.169 |
2012 |
153.9 |
0.148 |
2013 |
147.3 |
0.127 |
2014 |
138.0 |
0.105 |
2015 |
124.2 |
0.086 |
2016 |
104.0 |
0.073 |
2017 |
79.0 |
0.070 |
2018 |
56.2 |
0.079 |
2019 |
39.8 |
0.096 |
2020 |
28.8 |
0.117 |
2021 |
21.2 |
0.139 |
2022 |
15.7 |
0.160 |
2023 |
11.4 |
0.180 |
2024 |
8.0 |
0.198 |
2025 |
5.0 |
0.213 |
2026 |
2.5 |
0.225 |
2027 |
0.1 |
0.234 |
2028 |
357.9 |
0.240 |
2029 |
355.8 |
0.242 |
2030 |
353.7 |
0.241 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 20154+6412 MLR 60 AB : NOTES
discov_num |
notes |
refcode |
SHY 772 |
AD: HIP 99832 + HIP 98613. |
|
MLR 60 |
AB: Malkov et al. (2012) derive dynamical, photometric, and |
|
|
spectroscopic masses 1.60 +/- 0.87, 2.37, and 0.95 Msun, respectively. |
Mlk2012 |
REFERENCES
refcode |
metd |
author |
reference |
Doc2012j |
orb - |
Docobo, J.A. & Andrade, M. |
2012IAUDS.178Q...1D |
Doc2012j |
|
Inf. Circ. 178, 1, 2012 |
|
Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
Mlk2012 |
|
A&A 546, A69, 2012 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
LDS |
Luyten p.m. catalog (from additional DD list) |
1 |
MLR |
Muller, P. |
147 |
SHY |
Shaya, E.J. & Olling, R. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
20154+6412 |
MLR 60 |
AB |
1997 |
21 |
349 |
0.2 |
8.46 |
8.50 |
G5 |
O |
201521.50+641153.5 |
20154+6412 |
MLR 60 |
AB |
2007 |
22 |
349 |
0.2 |
8.46 |
8.50 |
G5 |
O |
201521.50+641153.5 |
20154+6412 |
MLR 60 |
AB |
2008 |
24 |
173 |
0.2 |
8.46 |
8.50 |
G5 |
NOD |
201521.50+641153.5 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20154+6412 MLR 60 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20154+6412 MLR 60 AB : MEASURES
No records found.
WDS 20154+6412 : 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 20154+6412 : ALADIN DSS IMAGE @ 20h 15m 21.50s +64° 11' 55.6"
WDS 20154+6412 MLR 60 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 |
|
20154+6412 |
MLR 60 |
AB |
173 |
0.2 |
|
Show |
|
20154+6412 |
LDS5245 |
AC |
122 |
20.0 |
|
Show |
|
20154+6412 |
SHY 772 |
AD |
247 |
999.9 |
|
Show |
|
20171+6410 |
STI 961 |
|
179 |
6.7 |
13 |
Show |
|
20142+6429 |
STI 958 |
|
6 |
7.3 |
20 |
Show |
|
20137+6353 |
LDS2449 |
|
165 |
24.9 |
22 |
Show |
|
20119+6431 |
STF2660 |
|
166 |
22.3 |
30 |
Show |
|
20178+6343 |
STI 962 |
|
182 |
14.9 |
34 |
Show |
|
20102+6419 |
STI 950 |
|
200 |
6.5 |
35 |
Show |
|
20212+6359 |
BU 1134 |
|
81 |
4.3 |
41 |
Show |
|
20198+6333 |
LDS2451 |
|
85 |
25.4 |
41 |
Show |
|
20229+6411 |
STF2685 |
|
347 |
4.2 |
50 |
Show |
|
20213+6341 |
STI 971 |
|
141 |
7.1 |
50 |
Show |
|
20085+6346 |
STI 947 |
|
320 |
11.1 |
53 |
Show |
|
20185+6313 |
HJ 2958 |
|
316 |
9.5 |
63 |
Show |
|
20086+6328 |
STI 948 |
|
321 |
17.9 |
64 |
Show |
|
20056+6342 |
STF2642 |
AB |
191 |
1.8 |
71 |
Show |
|
20056+6342 |
STF2642 |
AC |
34 |
68.6 |
71 |
Show |
|
20052+6346 |
BU 470 |
|
210 |
2.6 |
72 |
Show |
|
20047+6353 |
STF2640 |
AB |
14 |
5.7 |
73 |
Show |
|
20047+6353 |
STF2640 |
AC |
81 |
153.0 |
73 |
Show |
|
20042+6434 |
BU 1479 |
|
46 |
43.0 |
76 |
Show |
|
20035+6412 |
TDT1939 |
|
330 |
0.8 |
78 |
Show |
|
20074+6511 |
HJL1102 |
|
123 |
126.7 |
79 |
Show |
|
20183+6526 |
MLB 219 |
|
333 |
2.9 |
79 |
Show |
|
20258+6325 |
STI 979 |
|
52 |
6.7 |
84 |
Show |
|
20185+6533 |
KPP 467 |
|
243 |
4.7 |
84 |
Show |
|
20023+6438 |
STTA200 |
AB |
332 |
98.9 |
89 |
Show |
|
20023+6438 |
STTA200 |
AC |
190 |
27.0 |
89 |
Show |
|
20034+6330 |
STF2632 |
|
299 |
26.2 |
90 |
Show |
|
20012+6409 |
UC 4066 |
|
95 |
15.8 |
93 |
Show |
|
20117+6542 |
TDT2071 |
|
65 |
0.8 |
94 |
Show |
|
20298+6400 |
MLR 52 |
|
32 |
0.2 |
96 |
Show |
|
20129+6236 |
STI 954 |
|
286 |
9.4 |
97 |
Show |
|
20015+6449 |
H 6 38 |
AB |
171 |
193.1 |
98 |
Show |
|
20276+6513 |
UC 4188 |
|
18 |
30.7 |
100 |
Show |
|
20202+6236 |
HU 958 |
|
354 |
0.9 |
102 |
Show |
|
20198+6235 |
LDS1470 |
|
128 |
12.7 |
102 |
Show |
|
20061+6538 |
TDT1975 |
|
274 |
0.8 |
104 |
Show |
|
20023+6515 |
STI 941 |
|
96 |
11.7 |
105 |
Show |
|
20010+6323 |
STI 940 |
|
69 |
14.1 |
107 |
Show |
|
20194+6600 |
TDT2167 |
|
125 |
0.4 |
111 |
Show |
|
19582+6430 |
UC 4059 |
|
43 |
8.6 |
113 |
Show |
|
20081+6227 |
STI 946 |
|
302 |
5.3 |
116 |
Show |
|
20254+6237 |
TDT2259 |
|
158 |
2.1 |
117 |
Show |
|
20080+6225 |
BVD 335 |
|
39 |
9.7 |
118 |
Show |
|
20097+6220 |
ES 1853 |
|
293 |
4.3 |
119 |
Show |
|
20227+6224 |
STI 973 |
|
65 |
4.0 |
119 |
Show |
|
20332+6442 |
MLB 220 |
|
84 |
7.2 |
120 |
Show |
|
20196+6215 |
GUL 2 |
|
347 |
0.3 |
120 |
Show |
|
20207+6609 |
SKF2610 |
|
187 |
13.0 |
122 |
|
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WDS 20154+6412 : COMPONENTS
|
A |
B |
C |
B |
pa=177.0°
sep=0.25"
| |
C |
pa=145.1°
sep=12.92"
| pa=144.6°
sep=12.71"
| |
D |
pa=225.7°
sep=3275.98"
| pa=225.7°
sep=3275.82"
| pa=225.9°
sep=3274.12"
|
20154+6412 A
Coord arcsec 2000 |
201521.50+641155.6 |
|
Mag |
8.46 |
|
Spectral class |
G5 (yellow) |
|
PmRA |
178.00 |
|
PmDE |
232.0 |
|
Ccdm |
20154+6412 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-2.49 |
|
DDEs |
-4.6 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
8.7 |
|
Sp |
G5 |
|
PmNote |
* |
|
PmRA |
180 |
|
PmDE |
229 |
|
Dm number |
+63 1608 |
|
Cat1 |
BD |
|
Name2 |
+64 971 |
|
Cat2 |
AGK2/3 |
|
HD |
193215 |
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
20140N6353A |
|
HIC |
99832 |
|
20154+6412 B
Coord arcsec 2000 |
201521.50+641155.4 |
|
Mag |
8.5 |
|
SAO |
18780 |
|
HIP |
99832 |
|
Tycho2 |
4240-00516-1 |
|
HD |
193215 |
|
BD |
BD+63 1608 |
|
Calc delta mag |
0.04 |
|
Calc coord |
yes |
|
Tycho2 |
4240-00516-1 |
|
Pflag |
|
|
RAmdeg |
303.83960060 |
|
DEmdeg |
64.19876552 |
|
PmRA |
180.3 |
|
PmDE |
228.0 |
|
E RAmdeg |
8 |
|
E DEmdeg |
8 |
|
E pmRA |
1.6 |
|
E pmDE |
1.6 |
|
EpRAm |
1991.14 |
|
EpDEm |
1991.23 |
|
Num |
8 |
|
Q RAmdeg |
0.9 |
|
Q DEmdeg |
0.6 |
|
Q pmRA |
0.9 |
|
Q pmDE |
0.6 |
|
BTmag |
9.431 |
|
E BTmag |
0.019 |
|
VTmag |
8.544 |
|
E VTmag |
0.013 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
99832 |
|
CCDM |
|
|
RAdeg |
303.83864278 |
|
DEdeg |
64.19824472 |
|
EpRA 1990 |
1.69 |
|
EpDE 1990 |
1.78 |
|
E RAdeg |
7.9 |
|
E DEdeg |
7.7 |
|
Posflg |
|
|
Corr |
0.0 |
|
SAO |
18780 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0252 |
|
DE1950 |
|
|
PmDE1950 |
0.225 |
|
Vmag |
8 |
|
SpType |
G5 |
|
Double code |
|
|
Source |
2 |
|
CatNum |
971 |
|
DM |
BD+63 1608 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
193215 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
5.3000384 |
|
DE1950rad |
1.11772425 |
|
PmRA2000 |
0.0256 |
|
PmDE2000 |
0.223 |
|
Catalog |
H |
|
HIP |
99832 |
|
Proxy |
|
|
RAhms |
20 15 21.26 |
|
DEdms |
+64 11 53.6 |
|
Vmag |
8.44 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
303.839 |
|
DEdeg |
64.1982 |
|
AstroRef |
|
|
Plx |
14.79 |
|
CCDM |
20154+6412 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
1 |
|
MultFlag |
|
|
Source |
|
|
Qual |
|
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
193215 |
|
BD |
BD+63 1608 |
|
CD |
|
|
CP |
|
|
Dm number |
+63 1608 |
|
VIred |
0.85 |
|
SpType |
G5 |
|
R SpType |
|
|
Coord arcsec 2000 |
201521.26+641153.6 |
|
HIP |
99832 |
|
Sn |
5 |
|
So |
0 |
|
Nc |
1 |
|
RArad |
5.302983794 |
|
DErad |
1.1204701836 |
|
Plx |
14.5 |
|
PmRA |
180.63 |
|
PmDE |
230.46 |
|
E RArad |
0.48 |
|
E DErad |
0.47 |
|
E Plx |
0.48 |
|
E pmRA |
0.41 |
|
E pmDE |
0.59 |
|
Hpmag |
8.5946 |
|
E Hpmag |
0.0013 |
|
SHp |
0.01 |
|
VA |
0 |
|
BV |
0.807 |
|
E BV |
0.017 |
|
VI |
0.83 |
|
Ccdm |
20154+6412 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
MLR 60 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1970 |
|
Theta |
200 |
|
Rho |
0.2 |
|
Obs |
1 |
|
Vmag |
8.7 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
20140N6353B |
|
HIC |
99832 |
|
20154+6412 C
Coord arcsec 2000 |
201522.63+641145.0 |
|
Mag |
17.03 |
|
PmRA |
180.00 |
|
PmDE |
228.0 |
|
Calc delta mag |
8.57 |
|
Calc coord |
yes |
|
20154+6412 D
Coord arcsec 2000 |
200924.34+633401.5 |
|
Mag |
10.12 |
|
Spectral class |
K2 (yellow-orange) |
|
PmRA |
166.00 |
|
PmDE |
239.0 |
|
Calc delta mag |
1.66 |
|
Calc coord |
yes |
|