04218+1929 SIG 1
04h 21m 49.56s +19° 29' 08.6" P.A. 75.00 sep 0.2 mag 13.10,13.90 Sp M7+M9.5
Coord 2000 |
04218+1929 |
|
Discov num |
SIG 1 |
|
Comp |
|
|
Coord arcsec 2000 |
04 21 49.56 +19 29 08.6 |
|
Date first |
2002 |
|
Date last |
2012 |
|
Obs |
20 |
|
Pa first |
91 |
|
Pa last |
75.3 |
|
P.A. Now (θ) |
57.3° |
|
Sep first |
0.1 |
|
Sep last |
0.159 |
|
Sep. Now (ρ) |
0.093" |
|
Mag pri |
13.10 |
|
Mag sec |
13.90 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
M7+M9.5 (red/red) |
|
Pri motion ra |
+116 |
|
Sec motion ra |
|
|
Pri motion dec |
-038 |
|
Sec motion dec |
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|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Taurus |
|
Gaia DR2 |
48190739948429184 |
|
ORBITAL ELEMENTS
Period (P) | 14.82y | ± 0.24 |
Periastron (T) | 58880m (2020.085y) | ± 140 |
Semi-major axis (a) | 0.0965a | ± 0.0014 |
Eccentricity (e) | 0.706 | ± 0.012 |
Inclination (i) | 62.4° | ± 1.6 |
Longitude of periastron (ω) | 168° | ± 4 |
Node (Ω) | 82.1° | ± 1.1 |
Notes | n | |
Reference | Dup2017 | |
Equinox | | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
82.7 |
0.155 |
2001 |
86.0 |
0.142 |
2002 |
90.3 |
0.122 |
2003 |
96.8 |
0.093 |
2004 |
111.8 |
0.052 |
2005 |
223.7 |
0.021 |
2006 |
334.8 |
0.024 |
2007 |
40.0 |
0.054 |
2008 |
55.6 |
0.087 |
2009 |
63.0 |
0.114 |
2010 |
67.8 |
0.135 |
2011 |
71.4 |
0.150 |
2012 |
74.5 |
0.159 |
2013 |
77.4 |
0.162 |
2014 |
80.2 |
0.161 |
2015 |
83.2 |
0.153 |
2016 |
86.7 |
0.139 |
2017 |
91.2 |
0.117 |
2018 |
98.4 |
0.086 |
2019 |
117.8 |
0.043 |
2020 |
247.9 |
0.026 |
2021 |
355.5 |
0.027 |
2022 |
44.1 |
0.060 |
2023 |
57.3 |
0.093 |
2024 |
64.0 |
0.118 |
2025 |
68.5 |
0.138 |
2026 |
72.0 |
0.152 |
2027 |
75.1 |
0.160 |
2028 |
77.9 |
0.163 |
2029 |
80.7 |
0.160 |
2030 |
83.8 |
0.151 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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WDS 04218+1929 SIG 1 : NOTES
discov_num |
notes |
refcode |
SIG 1 |
LP 415-20 = Bryja 262. Spectral types M7.0, M9.5. Probable Hyades |
|
|
member. Estimated orbital period 23 +7/-6 yrs. |
Sig2003 |
|
Konopacky et al. (2010) derive a distance of 21. +/- 5. pc and a |
|
|
system mass of 0.09 +/- 0.06 Msun. |
Kon2010 |
REFERENCES
refcode |
metd |
author |
reference |
Dup2017 |
A j |
Dupuy, T.J. & Liu, M.C. |
2017ApJS..231...15D |
Dup2017 |
+orb |
ApJS 231, 15, 2017 |
|
Kon2010 |
Ag j |
Konopacky, Q.M., Ghez, A.M., Barman, T.S., Rice, E.L., Bailey, III, J.I., |
2010ApJ...711.1087K |
Kon2010 |
|
White, R.J., McLean, I.S., & Duchene, G. |
|
Kon2010 |
|
ApJ 711, 1087, 2010 |
|
Sig2003 |
A j |
Siegler, N., Close, L.M., Mamajek, E.E., & Freed, M. |
2003ApJ...598.1265S |
Sig2003 |
|
ApJ 598, 1265, 2003 |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
04218+1929 |
SIG 1 |
|
2002 |
1 |
91 |
0.1 |
13.10 |
13.90 |
|
N |
042149.56+192908.6 |
04218+1929 |
SIG 1 |
|
2008 |
5 |
63 |
0.1 |
13.10 |
13.90 |
M7+M9.5 |
NOD |
042149.56+192908.6 |
04218+1929 |
SIG 1 |
|
2010 |
9 |
68 |
0.1 |
13.10 |
13.90 |
M7 M9.5 |
NOD |
042149.56+192908.6 |
04218+1929 |
SIG 1 |
|
2012 |
20 |
75 |
0.2 |
13.10 |
13.90 |
M7+M9.5 |
NO |
042149.56+192908.6 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 04218+1929 SIG 1 : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 04218+1929 SIG 1 : MEASURES
No records found.
WDS 04218+1929 : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
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WDS 04218+1929 : ALADIN DSS IMAGE @ 04h 21m 49.56s +19° 29' 08.6"
WDS 04218+1929 SIG 1 : NEIGHBORHOODS
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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 |
|
04218+1929 |
SIG 1 |
|
75 |
0.2 |
|
Show |
|
04217+1928 |
BU 9004 |
|
46 |
55.8 |
2 |
Show |
|
04220+1932 |
GHE 6 |
AB |
191 |
0.7 |
4 |
Show |
|
04220+1932 |
GHE 6 |
A,Ba |
195 |
0.7 |
4 |
Show |
|
04220+1932 |
GHE 6 |
A,Bb |
195 |
0.6 |
4 |
Show |
|
04220+1932 |
NSE 1 |
AC |
358 |
0.3 |
4 |
Show |
|
04220+1932 |
KRS 2 |
Ba,Bb |
20 |
0.1 |
4 |
Show |
|
04220+1932 |
CSE 1 |
AD |
199 |
0.1 |
4 |
Show |
|
04221+1934 |
KOH 9 |
AB |
317 |
12.0 |
7 |
Show |
|
04221+1934 |
DAE 25 |
AC |
187 |
7.7 |
7 |
Show |
|
04218+1949 |
KNT 2 |
|
25 |
3.3 |
20 |
Show |
|
04203+1937 |
TDS2828 |
|
264 |
3.1 |
23 |
Show |
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04201+1953 |
LDS1164 |
|
139 |
30.2 |
34 |
Show |
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04221+2007 |
LDS3581 |
|
179 |
14.4 |
38 |
Show |
|
04242+1959 |
LDS3583 |
|
296 |
29.0 |
45 |
Show |
|
04222+1844 |
SLE 270 |
|
98 |
11.0 |
46 |
Show |
|
04249+1903 |
OCC 921 |
|
-1 |
0.1 |
52 |
Show |
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04255+1942 |
COU 565 |
|
136 |
0.7 |
54 |
Show |
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04255+1946 |
STJ 27 |
|
344 |
1.5 |
56 |
Show |
|
04252+1858 |
RAO 546 |
|
140 |
0.8 |
58 |
Show |
|
04255+1901 |
HEI 456 |
|
221 |
2.9 |
59 |
Show |
|
04203+1833 |
LDS5540 |
AB |
266 |
264.2 |
60 |
Show |
|
04203+1833 |
LDS5540 |
AC |
266 |
306.8 |
60 |
Show |
|
04216+2029 |
LDS5543 |
AB |
89 |
113.6 |
61 |
Show |
|
04216+2029 |
SKF1934 |
Aa,Ab |
224 |
1.2 |
61 |
Show |
|
04175+1911 |
A 2350 |
|
127 |
0.6 |
64 |
Show |
|
04174+1945 |
LDS5536 |
|
357 |
12.1 |
65 |
Show |
|
04259+1852 |
BU 1185 |
|
203 |
0.3 |
69 |
Show |
|
04170+1941 |
HO 328 |
|
358 |
0.4 |
69 |
Show |
|
04223+1820 |
LDS2229 |
|
234 |
3.5 |
70 |
Show |
|
04266+1912 |
GWP 585 |
|
183 |
37.5 |
70 |
Show |
|
04258+2012 |
LDS2235 |
|
112 |
27.6 |
72 |
Show |
|
04167+1909 |
LDS5530 |
|
199 |
34.7 |
75 |
Show |
|
04256+1838 |
COU2681 |
AB |
253 |
1.1 |
75 |
Show |
|
04256+1838 |
GII 129 |
Aa,Ab |
171 |
0.2 |
75 |
Show |
|
04200+1820 |
LDS2225 |
|
229 |
5.8 |
76 |
Show |
|
04270+1907 |
STF 546 |
|
182 |
7.0 |
77 |
Show |
|
04224+2049 |
BU 87 |
|
168 |
1.9 |
81 |
Show |
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04276+1927 |
RED 5 |
|
162 |
0.1 |
82 |
Show |
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04210+2050 |
LDS3578 |
|
351 |
44.4 |
83 |
Show |
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04162+1853 |
GWP 573 |
|
236 |
163.2 |
88 |
Show |
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04207+2056 |
LDS2226 |
|
5 |
21.1 |
89 |
Show |
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04174+2033 |
KPP3562 |
|
156 |
6.2 |
89 |
Show |
|
04173+2035 |
LDS5535 |
AB |
299 |
180.7 |
92 |
Show |
|
04173+2035 |
LDS5535 |
AC |
157 |
6.0 |
92 |
Show |
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04157+1858 |
OCC 432 |
|
-1 |
0.0 |
93 |
Show |
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04154+1948 |
UC 1142 |
|
105 |
55.6 |
93 |
Show |
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04235+2059 |
CHR 16 |
AB |
1 |
0.2 |
93 |
Show |
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04215+2102 |
OCC 684 |
|
-1 |
0.1 |
94 |
Show |
|
04270+2030 |
LDS2237 |
AB |
339 |
42.8 |
95 |
Show |
|
04270+2030 |
LDS2237 |
BC |
55 |
14.0 |
95 |
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WDS 04218+1929 : COMPONENTS
04218+1929 A
Componente originario normalizzato |
AB |
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Coord arcsec 2000 |
042149.56+192908.6 |
|
Mag |
13.1 |
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Spectral class |
M7 (red) |
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PmRA |
116.00 |
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PmDE |
-38.0 |
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04218+1929 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
042149.57+192908.6 |
|
Mag |
13.9 |
|
Spectral class |
M9.5 (red) |
|
Calc delta mag |
0.8 |
|
Calc coord |
yes |
|