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Current system
20490+2544
J 3111


Nearby doubles
4' : 20490+2540
HDS2966

9' : 20485+2540
TDT2553

13' : 20499+2547
GRV 386

14' : 20497+2535
J 3112

21' : 20497+2526
POU5028

25' : 20501+2604
HL 9002

27' : 20487+2517
POU5015

29' : 20495+2516
POU5025

29' : 20507+2527
POU5042

30' : 20507+2525
BKO 876

30' : 20478+2519
BUP 218AB

31' : 20483+2515
POU5004

32' : 20503+2518
POU5040

33' : 20471+2525
BU 364

34' : 20492+2510
POU5021

35' : 20501+2512
POU5038

35' : 20491+2509
BKO 865

36' : 20515+2533
COU 829

36' : 20499+2510
POU5029

37' : 20500+2508
BKO 874

37' : 20499+2508
POU5030

37' : 20487+2507
BKO 862

38' : 20482+2508
POU5003

38' : 20506+2512
POU5041

39' : 20497+2507
BKO 868

40' : 20492+2504
POU5020



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20490+2544 J 3111

 
 
20h 49m 02.80s +25° 43' 53.3" P.A. 138.00 sep 6.3 mag 10.89,12.70
 
 
Coord 2000 20490+2544 Discov num J  3111 Comp Coord arcsec 2000 20 49 02.80 +25 43 53.3
Date first 1893 Date last 2015 Obs 14
Pa first 141 Pa last 138.1 P.A. Now (θ) 138.1°
Sep first 6.2 Sep last 6.321 Sep. Now (ρ) 6.321"
Mag pri 10.89 Mag sec 12.70 delta mag (ΔM) 1.81 Spectral class
Pri motion ra -002 Sec motion ra +002
Pri motion dec -001 Sec motion dec -003
Notes
rPM=1.24
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Tycho2 2175-01274-1 Gaia DR2 1843795551409403008
 
 
WDS 20490+2544 J 3111 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
J__1908 Ma - Jonckheere, R. 1908BuAsI..25..458J
J__1908 Bull. Astronomique 25, 458, 1908
J__1909a Ma - Jonckheere, R. ...................
J__1909a Journal Astronomique 1, no. 1, 1, 1909
J__1909b Ma - Jonckheere, R. ...................
J__1909b Journal Astronomique 1, no. 2, 1909
J__1909c Ma - Jonckheere, R. ...................
J__1909c Journal Astronomique 1, no. 3, 1909
J__1910a Ma j Jonckheere, R. ...................
J__1910a Journal Astronomique 1, no. 4, 25, 1910
J__1910b Ma - Jonckheere, R. ...................
J__1910b Journal Astronomique 1, no. 5, 1910
J__1910c Ma j Jonckheere, R. ...................
J__1910c Journal Astronomique 1, no. 7, 1910
J__1910d Ma - Jonckheere, R. ...................
J__1910d Journal Astronomique 1, no. 7, 1910
J__1910e Ma j Jonckheere, R. ...................
J__1910e Journal Astronomique 1, no. 7, 1910
J__1910f Ma j Jonckheere, R. ...................
J__1910f Journal Astronomique 1, no. 10, 77, 1910
J__1910g Ma - Jonckheere, R. ...................
J__1910g Journal Astronomique 1, no. 11, 81, 1910
J__1910h Ma j Jonckheere, R. ...................
J__1910h Journal Astronomique 1, no. 12, 89, 1910
J__1910i Ma j Jonckheere, R. ...................
J__1910i Journal Astronomique 1, no. 13, 98, 1910
J__1911a Ma - Jonckheere, R. ...................
J__1911a Journal Astronomique 1, no. 15, 114, 1911
J__1911b Ma j Jonckheere, R. ...................
J__1911b Journal Astronomique 1, no. 16, 121, 1911
J__1911c Ma j Jonckheere, R. 1911MNRAS..71..750J
J__1911c MNRAS 71, 750, 1911
J__1911d Ma - Jonckheere, R. 1911MNRAS..72...45J
J__1911d MNRAS 72, 45, 1911
J__1911e Ma - Jonckheere, R. 1911MNRAS..72..156J
J__1911e MNRAS 72, 156, 1911
J__1911f Ma j Jonckheere, R. 1911MNRAS..72..162J
J__1911f MNRAS 72, 162, 1911
J__1912a Ma j Jonckheere, R. 1912MNRAS..72..188J
J__1912a MNRAS 72, 188, 1912
J__1912b Ma j Jonckheere, R. ...................
J__1912b Journal Astronomique 1, no. 17, 129, 1912
J__1912c Ma - Jonckheere, R. ...................
J__1912c Journal Astronomique 1, no. 19, 134, 1912
J__1912d Ma j Jonckheere, R. ...................
J__1912d Journal Astronomique 1, no. 21, 145, 1912
J__1912e Ma - Jonckheere, R. ...................
J__1912e Journal Astronomique 1, no. 22, 148, 1912
J__1912f Ma j Jonckheere, R. ...................
J__1912f Journal Astronomique 1, no. 23, 150, 1912
J__1912g Ma j Jonckheere, R. ...................
J__1912g Journal Astronomique 2, no. 25, 1, 1912
J__1912h Ma - Jonckheere, R. ...................
J__1912h Journal Astronomique 2, no. 26, 5, 1912
J__1913a Ma j Jonckheere, R. ...................
J__1913a Journal Astronomique 2, no. 27, 9, 1913
J__1913b Ma j Jonckheere, R. ...................
J__1913b Journal Astronomique 2, no. 28, 13, 1913
J__1914 Ma - Jonckheere, R. ...................
J__1914 Journal Astronomique 2, no. 29, 18, 1914
J__1917a Ma - Jonckheere, R. 1917MmRAS..61....1J
J__1917a MemRAS 61, 1, 1917
J__1917c Ma j Jonckheere, R. 1917AJ.....31....1J
J__1917c AJ 31, 1, 1917
J__1918 Ma - Jonckheere, R. 1918AJ.....31..113J
J__1918 AJ 31, 113, 1918
J__1918b Ma j Jonckheere, R. 1918MNRAS..78..479J
J__1918b MNRAS 78, 479, 1918
J__1919 Ma j Jonckheere, R. 1919AJ.....32...65J
J__1919 AJ 32, 65, 1919
J__1920 Ma - Jonckheere, R. 1920AJ.....32..166J
J__1920 AJ 32, 166, 1920
J__1924 Ma - Jonckheere, R. 1924AJ.....35..173J
J__1924 +Mb AJ 35, 173, 1924
J__1930 Ma j Jonckheere, R. 1930JO.....13...76J
J__1930 J. Obs. 13, 76, 1930
J__1941a Ma - Jonckheere, R. 1941JO.....24...21J
J__1941a J. Obs. 24, 21, 1941
J__1941b Ma - Jonckheere, R. 1941JO.....24...69J
J__1941b +Mb J. Obs. 24, 69, 1941
J__1941c Ma - Jonckheere, R. 1941JO.....24...93J
J__1941c +Mb J. Obs. 24, 93, 1941
J__1941d Ma - Jonckheere, R. 1941JO.....24..114J
J__1941d +Mb J. Obs. 24, 114, 1941
J__1942a Ma - Jonckheere, R. 1942JO.....25...11J
J__1942a J. Obs. 25, 11, 1942
J__1942b Ma - Jonckheere, R. 1942JO.....25...15J
J__1942b J. Obs. 25, 15, 1942
J__1942c Ma - Jonckheere, R. 1942JO.....25...25J
J__1942c +Mb J. Obs. 25, 25, 1942
J__1942d Mb - Jonckheere, R. 1942JO.....25...78J
J__1942d J. Obs. 25, 78, 1942
J__1943 Ma - Jonckheere, R. 1943JO.....26...28J
J__1943 +Mb J. Obs. 26, 28, 1943
J__1944a Ma j Jonckheere, R. 1944JO.....27....1J
J__1944a +Mb J. Obs. 27, 1, 1944
J__1944b Ma - Jonckheere, R. 1944JO.....27....5J
J__1944b J. Obs. 27, 5, 1944
J__1944c Mb - Jonckheere, R. 1944JO.....27....6J
J__1944c J. Obs. 27, 6, 1944
J__1944d Ma j Jonckheere, R. 1944JO.....27....7J
J__1944d +Mb J. Obs. 27, 7, 1944
J__1944e Ma - Jonckheere, R. 1944JO.....27...11J
J__1944e J. Obs. 27, 11, 1944
J__1945 Ma - Jonckheere, R. 1945JO.....28...26J
J__1945 +Mb J. Obs. 28, 26, 1945
J__1946 Mb j Jonckheere, R. 1946JO.....29...49J
J__1946 J. Obs. 29, 49, 1946
J__1948 Ma j Jonckheere, R. 1948JO.....31...65J
J__1948 J. Obs. 31, 65, 1948
J__1949a Ma j Jonckheere, R. 1949JO.....32...13J
J__1949a +Mb J. Obs. 32, 13, 1949
J__1949b Ma j Jonckheere, R. 1949JO.....32...81J
J__1949b +Mb J. Obs. 32, 81, 1949
J__1952 M+ j Jonckheere, R. 1952JO.....35...37J
J__1952 +Pa J. Obs. 35, 37, 1952
J__1953a Ma - Jonckheere, R. 1953JO.....36...44J
J__1953a J. Obs. 36, 44, 1953
J__1953b Mb j Jonckheere, R. 1953JO.....36...49J
J__1953b J. Obs. 36, 49, 1953
J__1954 Mb j Jonckheere, R. 1954JO.....37...13J
J__1954 J. Obs. 37, 13, 1954
J__1955 Mb - Jonckheere, R. 1955JO.....38..254J
J__1955 J. Obs. 38, 254, 1955
J__1957 Mb j Jonckheere, R. 1957JO.....40....1J
J__1957 J. Obs. 40, 1, 1957
J__1958 Mb j Jonckheere, R. 1958JO.....41..145J
J__1958 J. Obs. 41, 145, 1958
J__1962a M+ j Jonckheere, R. 1962QB821.J64......
J__1962a +Pa General Cat. of Double Stars, Marseille, 1962
J__1962b Ma - Jonckheere, R. (measure by Vanderdonck, J.) 1962QB821.J64......
J__1962b General Cat. of Double Stars, Marseille, 1962
J__1963A - Jonckheere, R. 1963icvd.book.....J
J__1963A cited in IDS (Lick Index Cat.), 1963
J__9999 Ma - Jonckheere, R. ...................
J__9999 +Pp Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20490+2544 J 3111 2004 6 139 6.2 10.89 12.70 D 204902.80+254353.3
20490+2544 J 3111 2010 9 139 6.2 10.89 12.70 204902.80+254353.3
20490+2544 J 3111 2015 11 138 6.3 10.89 12.70 204902.80+254353.3

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20490+2544 J 3111 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20490+2544 J 3111 : MEASURES
 
 
No records found.

 
 
WDS 20490+2544 : VIRTUAL EYEPIECE
 
 

20490+2544 J 3111A mag 10.89 20490+2544 J 3111B sep 6.0 P.A. 141.10 mag 12.7 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20490+2544 : ALADIN DSS IMAGE @ 20h 49m 02.80s +25° 43' 53.3"
 
 
 
 
WDS 20490+2544 J 3111 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20490+2544 J 3111 distance=0' 20490+2540 HDS2966 distance=4' 20485+2540 TDT2553 distance=9' 20499+2547 GRV 386 distance=13' 20497+2535 J 3112 distance=14' 20497+2526 POU5028 distance=21' 20501+2604 HL 9002 distance=25' 20487+2517 POU5015 distance=27' 20495+2516 POU5025 distance=29' 20507+2527 POU5042 distance=29' 20507+2525 BKO 876 distance=30' 20478+2519 WSI 49BE distance=30' 20478+2519 BKO 856FG distance=30' 20478+2519 BUP 218AB distance=30' 20478+2519 BUP 218AC distance=30' 20478+2519 BUP 218AD distance=30' 20478+2519 DAM 514AF distance=30' 20483+2515 POU5004 distance=31' 20503+2518 POU5040 distance=32' 20478+2519 POU4996DH distance=32' 20471+2525 BU 364 distance=33' 20492+2510 POU5021 distance=34' 20501+2512 POU5038 distance=35' 20491+2509 BKO 865 distance=35' 20515+2533 COU 829 distance=36' 20499+2510 POU5029 distance=36' 20500+2508 BKO 874 distance=37' 20499+2508 POU5030 distance=37' 20487+2507 BKO 862 distance=37' 20482+2508 POU5003 distance=38' 20506+2512 POU5041 distance=38' 20497+2507 BKO 868 distance=39' 20492+2504 POU5020 distance=40' 20482+2622 COU 827Aa,Ab distance=40' 20482+2622 TDT2548AB distance=40' 20503+2507 POU5039 distance=41' 20490+2504 BKO 864 distance=41' 20482+2624 STF2728AB distance=42' 20482+2624 STF2728AC distance=42' 20482+2624 FYM 66AF distance=42' 20482+2624 FYM 66AD distance=42' 20482+2624 FYM 66AE distance=42' 20462+2526 POU4974 distance=42' 20480+2504 POU5001 distance=42' 20482+2624 FYM 66EF distance=43' 20507+2621 KPP3362 distance=43' 20485+2501 POU5008 distance=44' 20513+2511 POU5045 distance=45' 20474+2502 POU4992 distance=47' 20456+2553 J 1074 distance=49' 20462+2513 POU4972 distance=50' grafico limitrofi
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 20490+2544 J 3111 138 6.3
Show 20490+2540 HDS2966 229 0.5 4
Show 20485+2540 TDT2553 347 0.6 9
Show 20499+2547 GRV 386 200 14.5 13
Show 20497+2535 J 3112 75 5.8 14
Show 20497+2526 POU5028 336 14.8 21
Show 20501+2604 HL 9002 138 16.0 25
Show 20487+2517 POU5015 78 14.6 27
Show 20495+2516 POU5025 80 8.6 29
Show 20507+2527 POU5042 344 7.4 29
Show 20507+2525 BKO 876 65 8.2 30
Show 20478+2519 WSI 49 BE 141 5.1 30
Show 20478+2519 BKO 856 FG 178 9.1 30
Show 20478+2519 BUP 218 AB 37 49.4 30
Show 20478+2519 BUP 218 AC 99 102.9 30
Show 20478+2519 BUP 218 AD 252 154.0 30
Show 20478+2519 DAM 514 AF 100 44.2 30
Show 20483+2515 POU5004 324 15.0 31
Show 20503+2518 POU5040 290 18.9 32
Show 20478+2519 POU4996 DH 127 12.0 32
Show 20471+2525 BU 364 75 0.7 33
Show 20492+2510 POU5021 355 6.0 34
Show 20501+2512 POU5038 342 16.2 35
Show 20491+2509 BKO 865 101 8.9 35
Show 20515+2533 COU 829 218 2.3 36
Show 20499+2510 POU5029 20 12.3 36
Show 20500+2508 BKO 874 254 12.5 37
Show 20499+2508 POU5030 343 4.5 37
Show 20487+2507 BKO 862 55 7.9 37
Show 20482+2508 POU5003 208 14.4 38
Show 20506+2512 POU5041 177 14.2 38
Show 20497+2507 BKO 868 276 9.7 39
Show 20492+2504 POU5020 68 4.0 40
Show 20482+2622 COU 827 Aa,Ab 332 0.6 40
Show 20482+2622 TDT2548 AB 148 0.6 40
Show 20503+2507 POU5039 84 10.8 41
Show 20490+2504 BKO 864 313 9.1 41
Show 20482+2624 STF2728 AB 25 10.5 42
Show 20482+2624 STF2728 AC 213 19.4 42
Show 20482+2624 FYM 66 AF 295 129.1 42
Show 20482+2624 FYM 66 AD 193 59.8 42
Show 20482+2624 FYM 66 AE 294 114.1 42
Show 20462+2526 POU4974 106 17.3 42
Show 20480+2504 POU5001 197 7.7 42
Show 20482+2624 FYM 66 EF 301 15.1 43
Show 20507+2621 KPP3362 277 3.9 43
Show 20485+2501 POU5008 312 7.8 44
Show 20513+2511 POU5045 314 13.7 45
Show 20474+2502 POU4992 336 17.8 47
Show 20456+2553 J 1074 299 2.3 49
Show 20462+2513 POU4972 279 13.8 50

 
 
WDS 20490+2544 : COMPONENTS
 
 
  A
B pa=141.1°
sep=6.05"
 
 
20490+2544 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204902.80+254353.3 Mag 10.89 PmRA -2.00
PmDE -1.0 Tycho2 2175-01274-1
Tycho2
Tycho2 2175-01274-1 Pflag RAmdeg 312.26168007 DEmdeg 25.73149375
PmRA 1.5 PmDE 1.0 E RAmdeg 36 E DEmdeg 42
E pmRA 1.8 E pmDE 1.8 EpRAm 1987.11 EpDEm 1985.19
Num 4 Q RAmdeg 0.2 Q DEmdeg 1.0 Q pmRA 0.2
Q pmDE 1.0 BTmag 11.214 E BTmag 0.060 VTmag 10.888
E VTmag 0.068 Prox 999 TYC T HIP
CCDM RAdeg 312.26167639 DEdeg 25.73149167 EpRA 1990 1.65
EpDE 1990 1.54 E RAdeg 36.9 E DEdeg 42.9 Posflg
Corr 0.1
 
 
20490+2544 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204903.08+254348.6 Mag 12.7 PmRA 2.00
PmDE -3.0 Calc delta mag 1.81 Calc coord yes