18152-2023 CHR 255 Aa,Ab
18h 15m 12.97s -20° 23' 16.7" P.A. 156.00 sep 0.1 mag 6.50,6.90 Sp O9IV dist. 2325.58 pc (7586.04 l.y.)
Coord 2000 |
18152-2023 |
|
Discov num |
CHR 255 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
18 15 12.97 -20 23 16.7 |
|
Date first |
1996 |
|
Date last |
2019 |
|
Obs |
9 |
|
Pa first |
140 |
|
Pa last |
156.4 |
|
P.A. Now (θ) |
156.4° |
|
Sep first |
0.1 |
|
Sep last |
0.091 |
|
Sep. Now (ρ) |
0.091" |
|
Mag pri |
6.50 |
|
Mag sec |
6.90 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
O9IV (blue) |
|
Pri motion ra |
+005 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18152-2023 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
186544 |
18 15 13 -20 23 17 |
CHR 255 Aa,Ab |
2019 |
9 |
156 |
0.1 |
6.50 |
6.90 |
0.40 |
|
<=== |
Show |
|
186544 |
18 15 13 -20 23 17 |
BU 286 AB |
2015 |
12 |
216 |
6.1 |
5.95 |
13.00 |
7.05 |
|
|
Show |
16 Sgr |
186544 |
18 15 13 -20 23 17 |
SNA 83 AC |
2012 |
1 |
27 |
5.9 |
5.88 |
13.43 |
7.55 |
|
|
Show |
|
186544 |
18 15 13 -20 23 17 |
SNA 83 AD |
2012 |
1 |
281 |
6.5 |
5.88 |
13.04 |
7.16 |
|
|
Show |
|
186544 |
18 15 13 -20 23 17 |
SNA 83 AE |
2012 |
1 |
242 |
7.3 |
5.88 |
13.20 |
7.32 |
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Sagittarius |
|
SAO |
186544 |
|
HIP |
89440 |
|
Tycho2 |
6272-00089-1 |
|
Gaia DR2 |
4094031138050641408 |
|
HD |
167263 |
|
HR |
6823 |
|
GC |
24895 |
|
ADS |
11191 |
|
BD |
BD-20 5055 |
|
Flamsteed |
16 Sagittarii |
|
Flamsteed name |
16 Sgr |
|
Distance |
2325.58 |
|
Distance ly |
7586.04 |
|
WDS 18152-2023 CHR 255 Aa,Ab : NOTES
discov_num |
notes |
refcode |
BU 286 |
16 Sgr. A is a spectroscopic binary. |
|
CHR 255 |
Aa,Ab: Garmany et al. (1980 ApJ 242, 1063) observed a smoothly-varying |
|
|
velocity indicating that the A component is probably a single-lined |
|
|
binary with a period of 11 d. |
|
|
Lindroos (1985) provided the classification of the B component and |
Lnd1985 |
|
determines a distance of 1.2 kpc. |
Msn1998a |
SNA 83 |
16 Sgr. SB. See discussion of system by Sana et al. 2014). |
Sna2014 |
REFERENCES
refcode |
metd |
author |
reference |
Lnd1985 |
- |
Lindroos, K.P. |
1985A&AS...60..183L |
Lnd1985 |
|
A&AS 60, 183, 1985 |
|
Msn1998a |
Sc j |
Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., |
1998AJ....115..821M |
Msn1998a |
|
ten Brummelaar, T.A., & McAlister, H.A. |
|
Msn1998a |
|
AJ 115, 821, 1998 |
|
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 |
|
ApJS 215, 15, 2014 |
|
Sna2014 |
|
(NACO companions in Table 6 assumed physical if quoted probability of spurious |
|
Sna2014 |
|
detection <10%, optical if >90%, otherwise indeterminate) |
|
DISCOVERER
idgroup |
discov |
author |
1 |
BU |
Burnham, S.W. (BU 1 - 81) |
179 |
CHR |
Center for High Ang. Res. Astronomy (speckle interferometry systems) |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18152-2023 |
CHR 255 |
Aa,Ab |
2006 |
2 |
150 |
0.1 |
5.95 |
|
O9IV |
N |
181512.97-202316.7 |
18152-2023 |
CHR 255 |
Aa,Ab |
2013 |
6 |
156 |
0.1 |
5.95 |
|
O9IV |
N |
181512.97-202316.7 |
18152-2023 |
CHR 255 |
Aa,Ab |
2014 |
7 |
156 |
0.1 |
6.50 |
6.90 |
O9IV |
N |
181512.97-202316.7 |
18152-2023 |
CHR 255 |
Aa,Ab |
2017 |
8 |
158 |
0.1 |
6.50 |
6.90 |
O9IV |
N |
181512.97-202316.7 |
18152-2023 |
CHR 255 |
Aa,Ab |
2019 |
9 |
156 |
0.1 |
6.50 |
6.90 |
O9IV |
N |
181512.97-202316.7 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18152-2023 CHR 255 Aa,Ab : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18152-2023 CHR 255 Aa,Ab : MEASURES
No records found.
WDS 18152-2023 : 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 18152-2023 : ALADIN DSS IMAGE @ 18h 15m 12.97s -20° 23' 16.7"
WDS 18152-2023 CHR 255 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 |
|
18152-2023 |
CHR 255 |
Aa,Ab |
156 |
0.1 |
1 |
Show |
|
18152-2023 |
BU 286 |
AB |
216 |
6.1 |
1 |
Show |
|
18152-2023 |
SNA 83 |
AC |
27 |
5.9 |
1 |
Show |
|
18152-2023 |
SNA 83 |
AD |
281 |
6.5 |
1 |
Show |
|
18152-2023 |
SNA 83 |
AE |
242 |
7.3 |
1 |
Show |
|
18163-2027 |
SKF1039 |
|
336 |
3.7 |
16 |
Show |
|
18152-2044 |
TOK 59 |
AB |
77 |
1.3 |
21 |
Show |
|
18152-2044 |
SNA 82 |
Aa,Ab |
203 |
0.0 |
21 |
Show |
|
18152-2044 |
SNA 82 |
AC |
356 |
2.3 |
21 |
Show |
|
18152-2044 |
SNA 82 |
AD |
108 |
7.1 |
21 |
Show |
|
18167-2022 |
SKF 99 |
|
141 |
3.0 |
21 |
Show |
|
18163-2008 |
ARA1143 |
|
18 |
10.9 |
22 |
Show |
|
18166-2033 |
MCA 51 |
|
321 |
0.1 |
22 |
Show |
|
18168-2027 |
ARA1144 |
|
336 |
9.7 |
22 |
Show |
|
18158-2001 |
CLL 12 |
|
199 |
22.9 |
24 |
Show |
|
18154-1956 |
B 1883 |
|
53 |
0.2 |
28 |
Show |
|
18150-1955 |
TOB 275 |
CF |
110 |
75.5 |
28 |
Show |
|
18150-1955 |
HJ 2823 |
AB |
330 |
20.3 |
28 |
Show |
|
18150-1955 |
TOB 275 |
AC |
91 |
23.2 |
28 |
Show |
|
18150-1955 |
TOB 275 |
AD |
47 |
30.3 |
28 |
Show |
|
18150-1955 |
TOB 275 |
DE |
37 |
36.3 |
29 |
Show |
|
18173-2029 |
BHA 26 |
|
352 |
5.5 |
30 |
Show |
|
18131-2024 |
J 1621 |
AC |
301 |
15.8 |
30 |
Show |
|
18131-2024 |
ARA1141 |
AB |
286 |
8.0 |
30 |
Show |
|
18131-2024 |
SKF1038 |
CD |
187 |
4.1 |
31 |
Show |
|
18140-2052 |
J 1622 |
|
45 |
7.7 |
32 |
Show |
|
18146-2055 |
KPP1769 |
|
268 |
13.7 |
34 |
Show |
|
18157-1950 |
B 1884 |
|
85 |
0.2 |
34 |
Show |
|
18155-2057 |
TDS 911 |
|
102 |
1.0 |
35 |
Show |
|
18128-2024 |
DON 886 |
|
205 |
4.9 |
35 |
Show |
|
18178-2039 |
ARA1146 |
|
351 |
11.0 |
39 |
Show |
|
18150-1945 |
TOB 276 |
|
345 |
13.0 |
39 |
Show |
|
18137-1949 |
TOB 277 |
|
130 |
23.5 |
40 |
Show |
|
18171-1952 |
HJ 2827 |
|
253 |
19.9 |
42 |
Show |
|
18162-2105 |
ARA1523 |
|
90 |
1.2 |
44 |
Show |
|
18136-2101 |
GLP 13 |
|
245 |
25.0 |
45 |
Show |
Polis |
18138-2104 |
H 5 7 |
AB |
258 |
16.9 |
46 |
Show |
Polis |
18138-2104 |
BU 292 |
AC |
119 |
25.5 |
46 |
Show |
Polis |
18138-2104 |
HJ 2822 |
AD |
312 |
48.2 |
46 |
Show |
Polis |
18138-2104 |
HJ 2822 |
AE |
114 |
50.2 |
46 |
Show |
|
18138-2104 |
SLV 7 |
BD |
331 |
40.8 |
46 |
Show |
|
18138-2104 |
SLV 7 |
BE |
106 |
64.4 |
46 |
Show |
|
18135-1945 |
OCC 467 |
|
-1 |
0.1 |
46 |
Show |
|
18147-1939 |
J 1623 |
|
29 |
5.7 |
46 |
Show |
|
18129-1945 |
OCC 465 |
|
-1 |
0.1 |
51 |
Show |
|
18115-2023 |
ARA1137 |
|
334 |
4.1 |
52 |
Show |
|
18121-2054 |
ARA1139 |
|
123 |
10.6 |
54 |
Show |
|
18140-1931 |
ARA 737 |
|
104 |
14.0 |
55 |
Show |
|
18156-1929 |
RST5108 |
|
76 |
0.3 |
55 |
Show |
|
18177-1940 |
BU 246 |
AB |
116 |
0.5 |
56 |
Show |
|
18177-1940 |
WSI 89 |
Ba,Bb |
321 |
0.1 |
56 |
|
|
WDS 18152-2023 : COMPONENTS
|
A |
Ab |
B |
C |
D |
Ab |
pa=157.7°
sep=0.09"
| |
B |
pa=214.5°
sep=5.95"
| pa=215.3°
sep=5.90"
| |
C |
pa=25.7°
sep=5.81"
| pa=25.1°
sep=5.88"
| pa=30.2°
sep=11.73"
| |
D |
pa=281.5°
sep=6.12"
| pa=282.2°
sep=6.17"
| pa=336.8°
sep=6.66"
| pa=244.7°
sep=9.42"
| |
E |
pa=240.7°
sep=6.98"
| pa=241.5°
sep=6.97"
| pa=298.7°
sep=3.10"
| pa=224.9°
sep=12.21"
| pa=181.2°
sep=4.63"
|
18152-2023 A
Coord arcsec 2000 |
181512.97-202316.7 |
|
Mag |
5.95 |
|
Spectral class |
O9IV (blue) |
|
PmRA |
5.00 |
|
PmDE |
-3.0 |
|
SAO |
186544 |
|
HIP |
89440 |
|
Tycho2 |
6272-00089-1 |
|
HD |
167263 |
|
HR |
6823 |
|
GC |
24895 |
|
ADS |
11191 |
|
BD |
BD-20 5055 |
|
Flamsteed |
16 Sagittarii |
|
Flamsteed name |
16 Sgr |
|
Tycho2 |
6272-00089-1 |
|
Pflag |
X |
|
RAmdeg |
|
|
DEmdeg |
|
|
PmRA |
|
|
PmDE |
|
|
E RAmdeg |
|
|
E DEmdeg |
|
|
E pmRA |
|
|
E pmDE |
|
|
EpRAm |
|
|
EpDEm |
|
|
Num |
|
|
Q RAmdeg |
|
|
Q DEmdeg |
|
|
Q pmRA |
|
|
Q pmDE |
|
|
BTmag |
5.936 |
|
E BTmag |
0.014 |
|
VTmag |
5.954 |
|
E VTmag |
0.010 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
89440 |
|
CCDM |
|
|
RAdeg |
273.80404000 |
|
DEdeg |
-20.38797056 |
|
EpRA 1990 |
1.84 |
|
EpDE 1990 |
1.76 |
|
E RAdeg |
3.4 |
|
E DEdeg |
3.9 |
|
Posflg |
|
|
Corr |
0.0 |
|
SAO |
186544 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0002 |
|
DE1950 |
|
|
PmDE1950 |
0 |
|
Vmag |
6 |
|
SpType |
B1 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
24895 |
|
DM |
BD-20 5055 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
167263 |
|
M HD |
0 |
|
GC |
24895 |
|
RA1950rad |
4.76579364 |
|
DE1950rad |
-0.35612778 |
|
PmRA2000 |
-0.0001 |
|
PmDE2000 |
0.001 |
|
Catalog |
H |
|
HIP |
89440 |
|
Proxy |
|
|
RAhms |
18 15 12.97 |
|
DEdms |
-20 23 16.7 |
|
Vmag |
5.96 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
273.804 |
|
DEdeg |
-20.388 |
|
AstroRef |
|
|
Plx |
-0.22 |
|
CCDM |
18152-2023 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
1 |
|
MultFlag |
|
|
Source |
|
|
Qual |
|
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
167263 |
|
BD |
BD-20 5055 |
|
CD |
|
|
CP |
|
|
Dm number |
-20 5055 |
|
VIred |
0.13 |
|
SpType |
B0.5Ib/II |
|
R SpType |
|
|
Coord arcsec 2000 |
181512.97-202316.7 |
|
HIP |
89440 |
|
Sn |
5 |
|
So |
0 |
|
Nc |
1 |
|
RArad |
4.7787819707 |
|
DErad |
-0.3558371945 |
|
Plx |
-0.43 |
|
PmRA |
-0.01 |
|
PmDE |
-1.38 |
|
E RArad |
0.32 |
|
E DErad |
0.23 |
|
E Plx |
0.39 |
|
E pmRA |
0.46 |
|
E pmDE |
0.3 |
|
Hpmag |
5.9569 |
|
E Hpmag |
0.001 |
|
SHp |
0.006 |
|
VA |
0 |
|
BV |
-0.023 |
|
E BV |
0.005 |
|
VI |
0 |
|
Ccdm |
18152-2023 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
1.04 |
|
DDEs |
-14.4 |
|
R dRAs |
41 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
6.0 |
|
Sp |
B1 |
|
PmNote |
$ |
|
PmRA |
0 |
|
PmDE |
1 |
|
Dm number |
-20 5055 |
|
Cat1 |
BD |
|
Name2 |
186544 |
|
Cat2 |
SAO |
|
HD |
167263 |
|
M HD |
|
|
ADS BDS |
A11191 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18093S2025A |
|
HIC |
89440 |
|
18152-2023 Ab
Coord arcsec 2000 |
181512.97-202316.8 |
|
Mag |
6.9 |
|
Calc delta mag |
0.4 |
|
Calc coord |
yes |
|
18152-2023 B
Coord arcsec 2000 |
181512.73-202321.6 |
|
Mag |
13 |
|
Calc delta mag |
6.5 |
|
Calc coord |
yes |
|
Ccdm |
18152-2023 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
BU 286 |
|
DRAs |
0.82 |
|
DDEs |
-20.2 |
|
R dRAs |
90 |
|
Year |
1878 |
|
Theta |
216 |
|
Rho |
6.0 |
|
Obs |
6 |
|
Vmag |
13.0 |
|
Sp |
|
|
PmNote |
$ |
|
PmRA |
6 |
|
PmDE |
-7 |
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A11191 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18093S2025B |
|
HIC |
89440 |
|
18152-2023 C
Coord arcsec 2000 |
181513.15-202311.5 |
|
Mag |
13.43 |
|
Calc delta mag |
6.93 |
|
Calc coord |
yes |
|
18152-2023 D
Coord arcsec 2000 |
181512.54-202315.5 |
|
Mag |
13.04 |
|
Calc delta mag |
6.54 |
|
Calc coord |
yes |
|
18152-2023 E
Coord arcsec 2000 |
181512.54-202320.1 |
|
Mag |
13.2 |
|
Calc delta mag |
6.7 |
|
Calc coord |
yes |
|