18187-1206 SNA 90 Aa,Ab
18h 18m 40.86s -12° 06' 23.3" P.A. 303.00 sep 0.0 mag 7.40,7.60 Sp O5IV+O6IV
Coord 2000 |
18187-1206 |
|
Discov num |
SNA 90 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
18 18 40.86 -12 06 23.3 |
|
Date first |
2012 |
|
Date last |
2012 |
|
Obs |
1 |
|
Pa first |
303 |
|
Pa last |
303.2 |
|
P.A. Now (θ) |
303.2° |
|
Sep first |
0.0 |
|
Sep last |
0.003 |
|
Sep. Now (ρ) |
0.003" |
|
Mag pri |
7.40 |
|
Mag sec |
7.60 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
O5IV+O6IV (blue/blue) |
|
Pri motion ra |
+001 |
|
Sec motion ra |
|
|
Pri motion dec |
-002 |
|
Sec motion dec |
|
|
Notes |
N
V
K
(See Notes, Proper motion indicates physical, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
18187-1206 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
18 18 41 -12 06 23 |
SNA 90 Aa,Ab |
2012 |
1 |
303 |
0.0 |
7.40 |
7.60 |
0.20 |
|
<=== |
Show |
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18 18 41 -12 06 23 |
SNA 90 AB |
2012 |
1 |
34 |
3.0 |
6.63 |
13.70 |
7.07 |
|
|
Show |
|
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18 18 41 -12 06 23 |
SNA 90 AC |
2012 |
1 |
267 |
7.6 |
6.63 |
14.00 |
7.37 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Serpens |
|
Gaia DR2 |
4153666106124493696 |
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WDS 18187-1206 SNA 90 Aa,Ab : NOTES
discov_num |
notes |
refcode |
SNA 90 |
Aa,Ab: Object is a non-thermal radio emitter (DeBecker et al. 2004). |
DBk2004 |
|
PIONIER clearly resolved it into a tight pair (3.3mas) with almost |
|
|
equal brightness (dH=0.17 +/- 0.19). |
Sna2014 |
REFERENCES
refcode |
metd |
author |
reference |
DBk2004 |
not - |
De Becker, M., Rauw, G., Blomme, R., Waldron, W.L., Sana, H., Pittard, J.M., |
2004A&A...420.1061D |
DBk2004 |
+Kv |
Eenens, P., Stevens, I.R., Runacres, M.C., Van Loo, S., & Pollock, A.M.T. |
|
DBk2004 |
|
A&A 420, 1061, 2004 |
|
Sna2014 |
Kv j |
Sana, H., LeBouquin, J.-B., Lacour, S., Berger, J.-P., Duvert, G., Gauchet, L., |
2014ApJS..215...15S |
Sna2014 |
+A |
Norris, B., Olofsson, J., Pickel, D., Zins, G., Absil, O., de Koter, A., |
|
Sna2014 |
|
Kratter, K., Schnurr, O., & Zinnecker, H. |
|
Sna2014 |
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ApJS 215, 15, 2014 |
|
Sna2014 |
|
(NACO companions in Table 6 assumed physical if quoted probability of spurious |
|
Sna2014 |
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detection <10%, optical if >90%, otherwise indeterminate) |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18187-1206 |
SNA 90 |
Aa,Ab |
2012 |
1 |
303 |
0.0 |
7.40 |
7.60 |
O5III |
V K |
181840.86-120623.3 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18187-1206 SNA 90 Aa,Ab : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18187-1206 SNA 90 Aa,Ab : MEASURES
No records found.
WDS 18187-1206 : 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 18187-1206 : ALADIN DSS IMAGE @ 18h 18m 40.86s -12° 06' 23.3"
WDS 18187-1206 SNA 90 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 |
|
18187-1206 |
SNA 90 |
Aa,Ab |
303 |
0.0 |
|
Show |
|
18187-1206 |
SNA 90 |
AB |
34 |
3.0 |
|
Show |
|
18187-1206 |
SNA 90 |
AC |
267 |
7.6 |
|
Show |
|
18183-1157 |
BRT2750 |
|
40 |
1.5 |
11 |
Show |
|
18182-1159 |
SKF1505 |
|
3 |
3.1 |
11 |
Show |
|
18181-1215 |
DBK 1 |
Aa,Ab |
262 |
0.0 |
12 |
Show |
|
18181-1215 |
TRN 27 |
AB |
40 |
4.8 |
12 |
Show |
|
18181-1215 |
SS 7 |
AC |
191 |
14.4 |
12 |
Show |
|
18181-1215 |
SS 7 |
AD |
260 |
18.1 |
12 |
Show |
|
18181-1215 |
SS 7 |
AE |
217 |
18.1 |
12 |
Show |
|
18181-1215 |
SS 7 |
AF |
16 |
30.1 |
12 |
Show |
|
18181-1215 |
SS 7 |
AG |
9 |
39.4 |
12 |
Show |
|
18181-1215 |
SS 7 |
AH |
268 |
40.8 |
12 |
Show |
|
18181-1215 |
SS 7 |
AI |
299 |
45.7 |
12 |
Show |
|
18181-1215 |
SS 7 |
AJ |
258 |
45.4 |
12 |
Show |
|
18181-1215 |
SS 7 |
AK |
262 |
48.6 |
12 |
Show |
|
18181-1215 |
SS 7 |
AL |
348 |
51.8 |
12 |
Show |
|
18181-1215 |
SS 7 |
AM |
255 |
64.4 |
12 |
Show |
|
18181-1215 |
SS 7 |
AN |
280 |
71.3 |
12 |
Show |
|
18181-1215 |
SS 7 |
AO |
305 |
72.1 |
12 |
Show |
|
18181-1215 |
SS 7 |
AP |
285 |
72.5 |
12 |
Show |
|
18181-1215 |
SS 7 |
AQ |
291 |
84.9 |
12 |
Show |
|
18181-1215 |
BRT2749 |
KJ |
121 |
4.3 |
13 |
Show |
|
18181-1214 |
LNV 7 |
|
51 |
4.3 |
13 |
Show |
|
18181-1155 |
TDT 783 |
|
67 |
0.5 |
14 |
Show |
|
18175-1206 |
WRS 12 |
|
134 |
8.8 |
17 |
Show |
|
18188-1227 |
SZA 5 |
|
136 |
5.9 |
21 |
Show |
|
18184-1239 |
TDT 785 |
|
252 |
1.0 |
34 |
Show |
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18164-1214 |
BRT2747 |
|
4 |
3.9 |
34 |
Show |
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18195-1242 |
RST4006 |
|
243 |
1.3 |
37 |
Show |
|
18202-1137 |
BRT2751 |
|
24 |
3.9 |
37 |
Show |
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18207-1138 |
SKF2802 |
|
344 |
5.6 |
42 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AB |
141 |
3.3 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AC |
47 |
3.7 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AD |
243 |
5.6 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AE |
354 |
5.9 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AF |
106 |
7.3 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AG |
290 |
8.5 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AH |
218 |
8.8 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AI |
132 |
8.9 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AJ |
294 |
10.4 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AK |
337 |
10.6 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AL |
310 |
12.2 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AM |
9 |
12.8 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AN |
334 |
12.9 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AO |
339 |
14.2 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AP |
294 |
19.6 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AQ |
309 |
23.5 |
48 |
Show |
Alasia |
18218-1155 |
EGN 22 |
AR |
313 |
26.2 |
48 |
Show |
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18181-1118 |
SNA 86 |
|
68 |
7.2 |
50 |
Show |
|
18166-1247 |
TSN 45 |
|
315 |
15.7 |
51 |
|
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WDS 18187-1206 : COMPONENTS
|
A |
Ab |
B |
Ab |
pa=303.8°
sep=0.00"
| |
B |
pa=33.2°
sep=2.98"
| pa=33.3°
sep=2.98"
| |
C |
pa=266.7°
sep=7.45"
| pa=266.7°
sep=7.45"
| pa=252.2°
sep=9.53"
|
18187-1206 A
Coord arcsec 2000 |
181840.86-120623.3 |
|
Mag |
6.63 |
|
Spectral class |
O5IV (blue) |
|
PmRA |
1.00 |
|
PmDE |
-2.0 |
|
18187-1206 Ab
Coord arcsec 2000 |
181840.86-120623.3 |
|
Mag |
7.6 |
|
Spectral class |
O6IV (blue) |
|
Calc delta mag |
0.2 |
|
Calc coord |
yes |
|
18187-1206 B
Coord arcsec 2000 |
181840.97-120620.8 |
|
Mag |
13.7 |
|
Calc delta mag |
6.3 |
|
Calc coord |
yes |
|
18187-1206 C
Coord arcsec 2000 |
181840.35-120623.7 |
|
Mag |
14 |
|
Calc delta mag |
6.6 |
|
Calc coord |
yes |
|