18550+4822 KOI 2754 AB
18h 54m 59.02s +48° 22' 24.1" P.A. 260.00 sep 0.8 mag 12.40,15.70
Coord 2000 |
18550+4822 |
|
Discov num |
KOI2754 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 54 59.02 +48 22 24.1 |
|
Date first |
2012 |
|
Date last |
2017 |
|
Obs |
19 |
|
Pa first |
262 |
|
Pa last |
260.3 |
|
P.A. Now (θ) |
260.3° |
|
Sep first |
0.8 |
|
Sep last |
0.777 |
|
Sep. Now (ρ) |
0.777" |
|
Mag pri |
12.40 |
|
Mag sec |
15.70 |
|
delta mag (ΔM) |
3.3 |
|
Spectral class |
|
|
Pri motion ra |
-016 |
|
Sec motion ra |
|
|
Pri motion dec |
+011 |
|
Sec motion dec |
|
|
Notes |
N
V
(See Notes, Proper motion indicates physical) |
|
This double is physical.
18550+4822 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
18 54 59 +48 22 24 |
KOI 2754 AB |
2017 |
19 |
260 |
0.8 |
12.40 |
15.70 |
3.30 |
|
<=== |
Show |
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18 54 59 +48 22 24 |
KOI 2754 AC |
2013 |
1 |
313 |
2.4 |
10.60 |
19.80 |
9.20 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Draco |
|
Gaia DR2 |
2131677584235170048 |
|
WDS 18550+4822 KOI 2754 AB : NOTES
discov_num |
notes |
refcode |
KOI2754 |
This system hosts a 0.7 Rearth planet candidate with a 1.3 day period |
|
|
(Burke et al. 2014). Our ARIES observations revealed a companion 2.11 |
KOI2014a |
|
J mags and 1.65 Ks mags fainter than KOI2754 at a 0".763 separation. |
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The predicted Kp mag of the companion star is Kp = 15.3 (dKp = 3.0) |
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if the star is a dwarf and Kp = 15.2 (dKp = 2.9) if the star is a |
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giant. The companion star was also detected in the WIYN speckle |
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imaging acquired with DSSI. The companion is 3.12 mag. fainter than |
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|
KOI2754 at 692 nm and 2.56 mags fainter at 880 nm. Assuming that the |
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planet orbits the target star and that all of the light from the |
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companion is captured in the Kepler aperture, then the planet radius |
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|
should be increased by 3% to account for dilution. KOI2754 does not |
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|
exhibit a significant source offset during transit. |
Dre2014 |
REFERENCES
refcode |
metd |
author |
reference |
Dre2014 |
A j |
Dressing, C.D., Adams, E.R., Dupree, A.K., Kulesa, C., & McCarthy, D. |
2014AJ....148...78D |
Dre2014 |
|
AJ 148, 78, 2014 (additional info from Furlan et al. 2017) |
2017AJ....153...71F |
KOI2014a |
not - |
Burke, C.J., Bryson, S.T., Mullally, F., et al. |
2014ApJS..210...19B |
KOI2014a |
|
ApJS 210, 19, 2014 (see Dressing et al. 2014) |
2014AJ....148...78D |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18550+4822 |
KOI2754 |
AB |
2013 |
1 |
262 |
0.8 |
12.30 |
15.30 |
|
R |
185459.02+482224.1 |
18550+4822 |
KOI2754 |
AB |
2014 |
10 |
260 |
0.8 |
12.30 |
15.30 |
|
N R |
185459.02+482224.1 |
18550+4822 |
KOI2754 |
AB |
2017 |
19 |
260 |
0.8 |
12.40 |
15.70 |
|
NV |
185459.02+482224.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18550+4822 KOI 2754 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18550+4822 KOI 2754 AB : MEASURES
No records found.
WDS 18550+4822 : 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 18550+4822 : ALADIN DSS IMAGE @ 18h 54m 59.02s +48° 22' 24.1"
WDS 18550+4822 KOI 2754 AB : 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 |
|
18550+4822 |
KOI2754 |
AB |
260 |
0.8 |
|
Show |
|
18550+4822 |
KOI2754 |
AC |
313 |
2.4 |
|
Show |
|
18545+4823 |
WOL 4 |
|
98 |
4.0 |
5 |
Show |
|
18533+4824 |
KOI3564 |
|
282 |
4.9 |
18 |
Show |
|
18541+4806 |
KOI1311 |
|
176 |
0.4 |
19 |
Show |
|
18534+4833 |
KOI 344 |
AB |
178 |
4.1 |
20 |
Show |
|
18534+4833 |
KOI 344 |
AC |
210 |
3.6 |
20 |
Show |
|
18532+4811 |
RAO 173 |
AB |
350 |
1.9 |
22 |
Show |
|
18528+4820 |
DEA 369 |
|
122 |
17.2 |
22 |
Show |
|
18524+4822 |
DEA 402 |
|
118 |
20.3 |
25 |
Show |
|
18532+4841 |
JKA 12 |
|
113 |
24.0 |
26 |
Show |
|
18565+4846 |
DEA 341 |
|
163 |
14.8 |
29 |
Show |
|
18525+4808 |
KOI1989 |
|
40 |
0.8 |
30 |
Show |
|
18548+4852 |
BU 1255 |
AB |
12 |
0.7 |
30 |
Show |
|
18548+4852 |
BU 1255 |
AC |
272 |
27.5 |
30 |
Show |
|
18548+4752 |
KOI 747 |
|
177 |
3.9 |
31 |
Show |
|
18580+4832 |
BVD 264 |
|
163 |
24.0 |
33 |
Show |
|
18551+4748 |
KOI 748 |
AB |
75 |
3.0 |
35 |
Show |
|
18551+4748 |
KOI 748 |
AC |
54 |
3.6 |
35 |
Show |
|
18556+4747 |
KOI 336 |
|
261 |
3.4 |
36 |
Show |
|
18553+4743 |
JKA 15 |
|
155 |
27.6 |
40 |
Show |
|
18512+4835 |
DEA 278 |
|
339 |
11.5 |
40 |
Show |
|
18517+4758 |
KOI4366 |
AB |
303 |
2.4 |
42 |
Show |
|
18591+4821 |
DEA 449 |
|
143 |
30.1 |
42 |
Show |
|
18549+4737 |
RAO 401 |
|
309 |
3.7 |
46 |
Show |
|
18526+4901 |
A 1384 |
|
61 |
0.7 |
46 |
Show |
|
18570+4741 |
KOI 532 |
|
232 |
1.0 |
46 |
Show |
|
18582+4858 |
KOI 258 |
AB |
73 |
1.0 |
48 |
Show |
|
18582+4858 |
KOI 258 |
AC |
75 |
1.4 |
48 |
Show |
|
18582+4858 |
KOI 258 |
Aa,Ab |
79 |
0.4 |
48 |
Show |
|
18582+4858 |
GII 275 |
Aa1,2 |
130 |
0.1 |
48 |
Show |
|
18549+4734 |
DEA 460 |
|
287 |
36.6 |
48 |
Show |
|
18583+4857 |
GII 46 |
|
84 |
0.4 |
48 |
Show |
|
18517+4859 |
JKA 10 |
AB |
154 |
260.1 |
50 |
Show |
|
18517+4859 |
KPP3428 |
AC |
192 |
13.5 |
50 |
Show |
|
18576+4738 |
DEA 327 |
|
114 |
13.8 |
52 |
Show |
|
18559+4914 |
KOI1436 |
|
243 |
5.8 |
53 |
Show |
|
19003+4835 |
DEA 191 |
|
78 |
8.9 |
56 |
Show |
|
18518+4734 |
KOI 289 |
AB |
233 |
0.0 |
58 |
Show |
|
18518+4734 |
KOI 289 |
AC |
52 |
3.3 |
58 |
Show |
|
18518+4734 |
KOI 289 |
AD |
88 |
5.9 |
58 |
Show |
|
18561+4725 |
DEA 265 |
|
333 |
10.9 |
59 |
Show |
|
18545+4920 |
DEA 165 |
|
240 |
8.3 |
59 |
Show |
|
18489+4816 |
KOI1287 |
|
339 |
2.6 |
61 |
Show |
|
18511+4736 |
TDT1085 |
|
104 |
2.7 |
62 |
Show |
|
18567+4922 |
KOI 768 |
|
86 |
3.6 |
62 |
Show |
|
19011+4834 |
KOI1800 |
|
43 |
3.9 |
62 |
Show |
|
19009+4848 |
KOI2497 |
|
211 |
3.1 |
65 |
Show |
|
19013+4844 |
KOI1482 |
|
33 |
5.1 |
66 |
Show |
|
18486+4844 |
DEA 284 |
|
128 |
11.6 |
67 |
Show |
|
18555+4713 |
COU2121 |
|
336 |
1.3 |
69 |
|
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WDS 18550+4822 : COMPONENTS
|
A |
B |
B |
pa=255.6°
sep=0.53"
| |
C |
pa=324.4°
sep=2.03"
| pa=339.3°
sep=1.91"
|
18550+4822 A
Coord arcsec 2000 |
185459.02+482224.1 |
|
Mag |
12.4 |
|
PmRA |
-16.00 |
|
PmDE |
11.0 |
|
18550+4822 B
Coord arcsec 2000 |
185458.97+482224.0 |
|
Mag |
15.7 |
|
Calc delta mag |
3.3 |
|
Calc coord |
yes |
|
18550+4822 C
Coord arcsec 2000 |
185458.90+482225.8 |
|
Mag |
19.8 |
|
Calc delta mag |
7.4 |
|
Calc coord |
yes |
|