18002+8000 BAG 6 Aa,Ab
18h 00m 09.07s +80° 00' 13.7" P.A. 316.00 sep 0.1 mag 6.22,6.69 Sp F7V+F7V dist. 63.53 pc (207.23 l.y.)
| Coord 2000 |
18002+8000 |
|
Discov num |
BAG 6 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
18 00 09.07 +80 00 13.7 |
|
| Date first |
1993 |
|
Date last |
2012 |
|
Obs |
31 |
|
| Pa first |
320 |
|
Pa last |
315.8 |
|
P.A. Now (θ) |
317.5° |
|
| Sep first |
0.1 |
|
Sep last |
0.102 |
|
Sep. Now (ρ) |
0.099" |
|
| Mag pri |
6.22 |
|
Mag sec |
6.69 |
|
delta mag (ΔM) |
0.47 |
|
Spectral class |
F7V+F7V (yellow-white/yellow-white) |
|
| Pri motion ra |
+039 |
|
Sec motion ra |
|
|
| Pri motion dec |
+125 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
18002+8000 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
8996 |
18 00 09 +80 00 14 |
BAG 6 Aa,Ab |
2012 |
31 |
316 |
0.1 |
6.22 |
6.69 |
0.47 |
Y |
<=== |
| Show |
41 Dra |
8996 |
18 00 09 +80 00 14 |
STF 2308 AB |
2022 |
184 |
232 |
18.9 |
5.70 |
6.00 |
0.30 |
Y |
|
| Show |
|
8996 |
18 00 09 +80 00 14 |
STF 2308 AC |
2017 |
17 |
129 |
225.3 |
5.70 |
8.34 |
2.64 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV10205 Dra |
|
Constellation |
Draco |
|
SAO |
8996 |
|
HIP |
88136 |
|
| Tycho2 |
4578-01433-1 |
|
Gaia DR2 |
2294405824838599808 |
|
HD |
166866 |
|
HR |
6810 |
|
| GC |
24669 |
|
ADS |
11061 |
|
BD |
BD+79 571 |
|
Flamsteed |
41 Draconis |
|
| Flamsteed name |
41 Dra |
|
Distance |
63.53 |
|
Distance ly |
207.23 |
|
ORBITAL ELEMENTS
| Period (P) | 1246.68d (3.41y) | ± 0.004 |
Periastron (T) | 49571.037d (1994.597y) | ± 0.008 |
Semi-major axis (a) | 0.0706a | ± 0.0014 |
| Eccentricity (e) | 0.9754 | ± 0.0001 |
Inclination (i) | 49.7° | ± 2.9 |
Longitude of periastron (ω) | 127.31° | ± 0.13 |
| Node (Ω) | 1.9° | ± 1.7 |
Notes | n | |
Reference | Tok2003 | |
| Equinox | | |
Last observation | 2001 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
323.3 |
0.110 |
| 2001-01-01 |
331.7 |
0.071 |
| 2002-01-01 |
312.2 |
0.072 |
| 2003-01-01 |
320.8 |
0.110 |
| 2004-01-01 |
327.3 |
0.096 |
| 2005-01-01 |
190.9 |
0.002 |
| 2006-01-01 |
318.0 |
0.101 |
| 2007-01-01 |
324.4 |
0.108 |
| 2008-01-01 |
335.1 |
0.054 |
| 2009-01-01 |
314.4 |
0.083 |
| 2010-01-01 |
321.8 |
0.111 |
| 2011-01-01 |
328.9 |
0.087 |
| 2012-01-01 |
307.5 |
0.052 |
| 2013-01-01 |
319.2 |
0.106 |
| 2014-01-01 |
325.5 |
0.104 |
| 2015-01-01 |
343.6 |
0.027 |
| 2016-01-01 |
316.1 |
0.092 |
| 2017-01-01 |
322.9 |
0.111 |
| 2018-01-01 |
330.8 |
0.076 |
| 2019-01-01 |
311.2 |
0.067 |
| 2020-01-01 |
320.4 |
0.109 |
| 2021-01-01 |
326.8 |
0.099 |
| 2022-01-01 |
280.2 |
0.013 |
| 2023-01-01 |
317.5 |
0.099 |
| 2024-01-01 |
324.0 |
0.109 |
| 2025-01-01 |
333.6 |
0.061 |
| 2026-01-01 |
313.6 |
0.079 |
| 2027-01-01 |
321.4 |
0.111 |
| 2028-01-01 |
328.2 |
0.091 |
| 2029-01-01 |
305.4 |
0.045 |
| 2030-01-01 |
318.8 |
0.104 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 18002+8000 BAG 6 Aa,Ab : NOTES
| discov_num |
notes |
refcode |
| STF2308 |
AB: LDS1882. HJL 257. Statistically the same parallax within the |
HJL1986 |
|
errors would indicate the components are physical. |
|
|
Linear elements fit nicely at present, but this is a physical pair and |
|
|
an orbit can be computed at some future date. |
|
|
AB: H 4 67. |
MEv2010 |
|
AB: A,B are 2.6 mag above MS, both evolved, both SB systems. Orbital |
|
|
parallax 23.0+-2.2mas. Masses 1.39,1.30,1.32,1.20. |
Tok2014d |
| BAG 6 |
A: 41 Dra. Spectroscopic binary, P = 1247.2d, with the highest known |
|
|
eccentricity to date, e = 0.975. |
|
|
Elements P, T, and e for the Balega et al. (1997) orbit were adopted |
Bag1997a |
|
from the spectroscopic orbit of Tokovinin (1995). |
Tok1995b |
|
Combined spectroscopic/speckle solution by Tokovinin et al. (2003), |
Tok2003 |
|
deriving masses (1.28 +/- 0.15, 1.20 +/- 0.14 Msun) and orbital |
|
|
parallax (23.0 +/- 2.2 mas). Authors note earlier elements and discuss |
|
|
possibility of orbital evolution. |
|
|
Effective temperatures for the two components are 6370+/-20 and |
|
|
6410+/-20K, log g 4.05+/-0.10 and 4.20+/-0.10. Abundances for both |
|
|
components are very near solar. |
Bag2005b |
|
Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and |
|
|
spectroscopic masses 7.75 +/- 5.22, 3.34, and 2.24 Msun, respectively. |
Mlk2012 |
|
B: 40 Dra = BD+79@570. B is also a spectroscopic binary, P = 10.53d. |
|
REFERENCES
| refcode |
metd |
author |
reference |
| Bag1997a |
S j |
Balega, I.I., Balega, Yu.Yu., Falcke, H., Osterbart, R., Reinheimer, T., Scholler, |
1997SvAL...23..172B |
| Bag1997a |
+orb |
M., & Weigelt, G. |
|
| Bag1997a |
|
SvAL 23, 172, 1997 |
|
| Bag2005b |
orb j |
Balega, Yu.Yu., Leushin, V.V., & Weigelt, G. |
2005ARep...49..217B |
| Bag2005b |
+S |
Astron. Reports 49, 217, 2005 |
|
| HJL1986 |
Pa - |
Halbwachs, J.L. |
1986A&AS...66..131H |
| HJL1986 |
|
A&AS 66, 131, 1986 |
|
| HJL1986 |
|
(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added |
|
| HJL1986 |
|
only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113) |
|
| MEv2010 |
- |
MacEvoy, B. |
................... |
| MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
| Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
| Mlk2012 |
|
A&A 546, A69, 2012 |
|
| Tok1995b |
orb - |
Tokovinin, A.A. |
1995PAZh...21..286T |
| Tok1995b |
|
Pisma Astron. Zhur. 21, 286, 1995 |
|
| Tok2003 |
S j |
Tokovinin, A.A., Balega, Y.Y., Pluzhnik, E.A., Shatsky, N.I., Gorynya, N.A., & |
2003A&A...409..245T |
| Tok2003 |
+orb |
Weigelt, G. |
|
| Tok2003 |
|
A&A 409, 245, 2003 |
|
| Tok2014d |
E2 - |
Tokovinin, A. |
2014AJ....147...86T |
| Tok2014d |
|
AJ 147, 86, 2014 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
STF |
Struve, F.G.W. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 18002+8000 |
BAG 6 |
Aa,Ab |
2001 |
29 |
307 |
0.1 |
6.22 |
6.69 |
F7V F7V |
NOD |
180009.07+800013.7 |
| 18002+8000 |
BAG 6 |
Aa,Ab |
2007 |
30 |
331 |
0.1 |
6.22 |
6.69 |
F7V F7V |
NOD |
180009.07+800013.7 |
| 18002+8000 |
BAG 6 |
Aa,Ab |
2010 |
31 |
325 |
0.1 |
6.22 |
6.69 |
F7V F7V |
NOD |
180009.07+800013.7 |
| 18002+8000 |
BAG 6 |
Aa,Ab |
2012 |
31 |
317 |
0.1 |
6.22 |
6.69 |
F7V F7V |
NOD |
180009.07+800013.7 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18002+8000 BAG 6 Aa,Ab : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18002+8000 BAG 6 Aa,Ab : MEASURES
No records found.
WDS 18002+8000 : 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 18002+8000 : ALADIN DSS IMAGE @ 18h 00m 09.07s +80° 00' 13.7"
WDS 18002+8000 BAG 6 Aa,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 |
|
18002+8000 |
BAG 6 |
Aa,Ab |
316 |
0.1 |
|
| Show |
|
18002+8000 |
STF2308 |
AB |
232 |
18.9 |
|
| Show |
|
18002+8000 |
STF2308 |
AC |
129 |
225.3 |
|
| Show |
|
17570+7944 |
MFL 237 |
|
177 |
4.9 |
18 |
| Show |
|
17458+8003 |
UC 3399 |
|
335 |
48.9 |
38 |
| Show |
|
17515+8038 |
MFL 219 |
|
81 |
19.5 |
44 |
| Show |
|
17462+8032 |
LDS1877 |
|
176 |
10.5 |
48 |
| Show |
|
18166+8027 |
LDS1884 |
|
108 |
5.7 |
50 |
| Show |
|
18148+8035 |
SKF1316 |
|
205 |
54.6 |
52 |
| Show |
|
17403+7927 |
LDS1875 |
|
149 |
110.3 |
63 |
| Show |
|
18077+7858 |
SKF1082 |
|
280 |
1.9 |
66 |
| Show |
|
17403+7915 |
MLR 206 |
|
26 |
1.3 |
70 |
| Show |
|
17450+8109 |
MFL 231 |
|
319 |
9.9 |
79 |
| Show |
|
17527+8122 |
MFL 252 |
|
323 |
8.7 |
84 |
| Show |
|
17430+8115 |
MFL 218 |
|
70 |
4.0 |
86 |
| Show |
|
18053+8129 |
STF2326 |
|
194 |
16.0 |
90 |
| Show |
|
17569+7829 |
CVR 208 |
|
276 |
53.8 |
93 |
| Show |
|
17473+7823 |
NSN 697 |
|
106 |
4.0 |
104 |
| Show |
|
18120+7814 |
LOC 363 |
|
67 |
2.1 |
112 |
| Show |
|
17533+7802 |
MFL 213 |
|
218 |
8.2 |
120 |
| Show |
|
18110+7712 |
HU 928 |
|
155 |
1.8 |
172 |
| Show |
|
17484+7702 |
LDS1879 |
|
35 |
60.8 |
182 |
| Show |
|
18175+7652 |
LOC 362 |
|
289 |
7.1 |
195 |
| Show |
|
17590+7634 |
LDS1881 |
|
179 |
11.3 |
206 |
| Show |
|
17478+8326 |
TOI1147 |
|
346 |
0.4 |
208 |
| Show |
|
17505+7635 |
BVD 332 |
|
169 |
17.7 |
208 |
| Show |
|
18196+7636 |
HU 929 |
|
111 |
1.8 |
213 |
| Show |
|
18029+7628 |
LOC 360 |
AB |
243 |
1.3 |
213 |
| Show |
|
17462+7629 |
MLR 209 |
|
53 |
2.2 |
216 |
| Show |
|
17422+7625 |
KPP2682 |
|
347 |
15.5 |
217 |
| Show |
|
17578+8351 |
UC 3457 |
|
310 |
32.8 |
232 |
| Show |
|
17492+8352 |
MFL 214 |
|
257 |
15.0 |
234 |
| Show |
|
17530+8354 |
STT 349 |
|
52 |
0.5 |
235 |
| Show |
|
17580+7600 |
TDT 598 |
|
210 |
2.5 |
241 |
| Show |
|
18007+8401 |
LOC 366 |
|
86 |
6.5 |
241 |
| Show |
|
17477+7603 |
TDT 508 |
|
106 |
0.5 |
241 |
| Show |
|
18039+8409 |
LDS1883 |
|
161 |
32.0 |
249 |
| Show |
|
18028+7547 |
STF2302 |
AB |
248 |
5.7 |
253 |
| Show |
|
18028+7547 |
STF2302 |
AC |
278 |
22.9 |
253 |
| Show |
|
18028+7547 |
STF2302 |
BC |
287 |
18.3 |
253 |
| Show |
|
17474+7549 |
MLR 210 |
|
82 |
0.6 |
255 |
| Show |
|
18014+8436 |
HU 65 |
AB |
257 |
1.7 |
276 |
| Show |
|
18014+8436 |
HU 65 |
AC |
197 |
9.2 |
276 |
| Show |
|
18014+8436 |
FOX 216 |
AD |
133 |
26.1 |
276 |
| Show |
|
18060+8439 |
KPP4083 |
|
45 |
7.3 |
280 |
|
|
WDS 18002+8000 : COMPONENTS
| |
A |
Ab |
B |
| Ab |
pa=350.4°
sep=0.07"
| |
| B |
pa=192.5°
sep=11.92"
| pa=192.4°
sep=11.99"
| |
| C |
pa=167.7°
sep=143.83"
| pa=167.7°
sep=143.90"
| pa=165.6°
sep=133.10"
|
18002+8000 A
| Name |
41 Dra |
|
Coord arcsec 2000 |
180009.07+800013.7 |
|
Mag |
5.7 |
|
Spectral class |
F7V (yellow-white) |
|
| PmRA |
47.00 |
|
PmDE |
124.0 |
|
SAO |
8996 |
|
HIP |
88136 |
|
| Tycho2 |
4578-01433-1 |
|
HD |
166866 |
|
HR |
6810 |
|
GC |
24669 |
|
| BD |
BD+79 571 |
|
Flamsteed |
41 Draconis |
|
Flamsteed name |
41 Dra |
|
| Tycho2 |
4578-01433-1 |
|
Pflag |
|
|
RAmdeg |
270.03836044 |
|
DEmdeg |
80.00409427 |
|
| PmRA |
41.1 |
|
PmDE |
122.2 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
| E pmRA |
0.8 |
|
E pmDE |
0.9 |
|
EpRAm |
1991.35 |
|
EpDEm |
1991.46 |
|
| Num |
14 |
|
Q RAmdeg |
1.2 |
|
Q DEmdeg |
1.5 |
|
Q pmRA |
1.1 |
|
| Q pmDE |
1.4 |
|
BTmag |
6.231 |
|
E BTmag |
0.014 |
|
VTmag |
5.699 |
|
| E VTmag |
0.009 |
|
Prox |
190 |
|
TYC |
T |
|
HIP |
88136 |
|
| CCDM |
A |
|
RAdeg |
270.03781639 |
|
DEdeg |
80.00381472 |
|
EpRA 1990 |
1.73 |
|
| EpDE 1990 |
1.77 |
|
E RAdeg |
3.6 |
|
E DEdeg |
3.6 |
|
Posflg |
|
|
| Corr |
0.0 |
|
| SAO |
8996 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0155 |
|
| DE1950 |
|
|
PmDE1950 |
0.12 |
|
Vmag |
5.8 |
|
SpType |
F5 |
|
| Double code |
|
|
Source |
70 |
|
CatNum |
24669 |
|
DM |
BD+79 571 |
|
| DMcomp |
|
|
BDsup |
|
|
HD |
166866 |
|
M HD |
0 |
|
| GC |
24669 |
|
RA1950rad |
4.72936593 |
|
DE1950rad |
1.39626127 |
|
PmRA2000 |
0.0163 |
|
| PmDE2000 |
0.122 |
|
| Catalog |
H |
|
HIP |
88136 |
|
Proxy |
|
|
RAhms |
18 00 09.07 |
|
| DEdms |
+80 00 13.7 |
|
Vmag |
5.74 |
|
VarFlag |
|
|
R Vmag |
H |
|
| RAdeg |
270.038 |
|
DEdeg |
80.0038 |
|
AstroRef |
A |
|
Plx |
18.84 |
|
| CCDM |
18002+8000 |
|
N CCDM |
I |
|
Nsys |
2 |
|
Ncomp |
1 |
|
| MultFlag |
C |
|
Source |
P |
|
Qual |
A |
|
M HIP |
|
|
| Theta |
|
|
Rho |
|
|
HD |
166866 |
|
BD |
BD+79 571 |
|
| CD |
|
|
CP |
|
|
Dm number |
+79 571 |
|
VIred |
0.58 |
|
| SpType |
K2Vvar |
|
R SpType |
|
|
Coord arcsec 2000 |
180009.07+800013.7 |
|
| HIP |
88136 |
|
Sn |
95 |
|
So |
3 |
|
Nc |
1 |
|
| RArad |
4.7130483536 |
|
DErad |
1.3963295517 |
|
Plx |
15.74 |
|
PmRA |
41.35 |
|
| PmDE |
127.7 |
|
E RArad |
3 |
|
E DErad |
3.48 |
|
E Plx |
3.52 |
|
| E pmRA |
3.02 |
|
E pmDE |
4.33 |
|
Hpmag |
5.8579 |
|
E Hpmag |
0.0345 |
|
| SHp |
0.174 |
|
VA |
0 |
|
BV |
0.516 |
|
E BV |
0.004 |
|
| VI |
0.59 |
|
| Ccdm |
18002+8000 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
| Note2 |
|
|
Discov num |
|
|
DRAs |
-2.80 |
|
DDEs |
14.5 |
|
| R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
| Obs |
3 |
|
Vmag |
5.8 |
|
Sp |
F5 |
|
PmNote |
* |
|
| PmRA |
41 |
|
PmDE |
120 |
|
Dm number |
+79 571 |
|
Cat1 |
BD |
|
| Name2 |
+79 491 |
|
Cat2 |
AGK2/3 |
|
HD |
166866 |
|
M HD |
|
|
| ADS BDS |
A11061 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18076N7959A |
|
| HIC |
88136 |
|
18002+8000 Ab
| Coord arcsec 2000 |
180009.07+800013.8 |
|
Mag |
6.69 |
|
Spectral class |
F7V (yellow-white) |
|
Calc delta mag |
0.47 |
|
| Calc coord |
yes |
|
18002+8000 B
| Coord arcsec 2000 |
180008.08+800002.1 |
|
Mag |
6 |
|
Spectral class |
F7V (yellow-white) |
|
PmRA |
55.00 |
|
| PmDE |
131.0 |
|
Flamsteed |
40 Draconis |
|
Flamsteed name |
40 Dra |
|
Calc delta mag |
0.22 |
|
| Calc coord |
yes |
|
| Ccdm |
18002+8000 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
| Note2 |
|
|
Discov num |
STF2308 |
|
DRAs |
-8.51 |
|
DDEs |
2.7 |
|
| R dRAs |
10 |
|
Year |
1984 |
|
Theta |
234 |
|
Rho |
19.0 |
|
| Obs |
99 |
|
Vmag |
6.2 |
|
Sp |
F5 |
|
PmNote |
* |
|
| PmRA |
46 |
|
PmDE |
127 |
|
Dm number |
+79 570 |
|
Cat1 |
BD |
|
| Name2 |
+79 490 |
|
Cat2 |
AGK2/3 |
|
HD |
166865 |
|
M HD |
|
|
| ADS BDS |
A11061 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18076N7959B |
|
| HIC |
88127 |
|
18002+8000 C
| Coord arcsec 2000 |
180020.81+795753.2 |
|
Mag |
8.34 |
|
PmRA |
2.00 |
|
PmDE |
4.0 |
|
| Calc delta mag |
2.12 |
|
Calc coord |
yes |
|
| Ccdm |
18002+8000 |
|
RComp |
|
|
Comp |
C |
|
Note1 |
|
|
| Note2 |
|
|
Discov num |
STF2308 |
|
DRAs |
64.49 |
|
DDEs |
-123.2 |
|
| R dRAs |
10 |
|
Year |
1984 |
|
Theta |
128 |
|
Rho |
223.7 |
|
| Obs |
2 |
|
Vmag |
9.2 |
|
Sp |
G5 |
|
PmNote |
* |
|
| PmRA |
-15 |
|
PmDE |
21 |
|
Dm number |
+79 574 |
|
Cat1 |
BD |
|
| Name2 |
+79 492 |
|
Cat2 |
AGK2/3 |
|
HD |
|
|
M HD |
|
|
| ADS BDS |
A11061 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18076N7959C |
|
| HIC |
|
|
