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Current system
20459+4448
ES 2701


Nearby doubles
5' : 20461+4452
ES 30

25' : 20472+4427
COU2424

26' : 20449+4425
ES 1332

30' : 20433+4456
ES 2699

30' : 20434+4501
ES 668AB

31' : 20432+4458
BKO 159

34' : 20432+4431
COU2422

37' : 20436+4514
CBL 85

38' : 20494+4452
TDS1103

39' : 20461+4410
BRT2275

39' : 20494+4458
GRV 384

40' : 20440+4521
KPP3361

40' : 20485+4519
LDS2456

47' : 20427+4521
ES 1270

50' : 20473+4535
HO 280

50' : 20490+4525
SMA 120

50' : 20504+4518
SMA 121

51' : 20492+4525
COU2646

52' : 20416+4424
COU2541

55' : 20461+4353
GRV 378

55' : 20500+4521
ES 2702

56' : 20414+4517
H N 73
Deneb

57' : 20511+4459
LDS2459

57' : 20506+4421
CHN 29

59' : 20489+4537
HDS2965

60' : 20509+4421
CHN 30AB



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.

20459+4448 ES 2701

 
 
20h 45m 55.66s +44° 48' 02.0" P.A. 81.00 sep 50.9 mag 8.76,9.24 Sp A7V
 
 
Coord 2000 20459+4448 Discov num ES 2701 Comp Coord arcsec 2000 20 45 55.66 +44 48 02.0
Date first 1892 Date last 2019 Obs 24
Pa first 80 Pa last 80.8 P.A. Now (θ) 80.8°
Sep first 52.9 Sep last 50.94 Sep. Now (ρ) 50.94"
Mag pri 8.76 Mag sec 9.24 delta mag (ΔM) 0.48 Spectral class A7V (white)
Pri motion ra +005 Sec motion ra -010
Pri motion dec -005 Sec motion dec -019
Notes N (See Notes)
rPM=0.956
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3178-00353-1 Gaia DR2 2070148711689337472
 
 
WDS 20459+4448 ES 2701 : NOTES
 
 
discov_num notes refcode
ES 2701 B is BD+44@3570.
 
 
REFERENCES
 
 
refcode metd author reference
Es_1901 Mb - Espin, T.E. 1901AN....155..321E
Es_1901 AN 155, 321, 1901 (ES 1 - 39)
Es_1902a Ma - Espin, T.E. 1902AN....158..241E
Es_1902a +Mb AN 158, 241, 1902 (ES 40 - 112)
Es_1902b Mb - Espin, T.E. 1902MNRAS..62..528E
Es_1902b MNRAS 62, 528, 1902
Es_1902c Mb j Espin, T.E. 1902MNRAS..62..402E
Es_1902c MNRAS 62, 402, 1902
Es_1903 Mb - Espin, T.E. 1903MNRAS..63..172E
Es_1903 MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a - Espin, T.E. 1904MNRAS..64..238E
Es_1904a MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905) 1905MNRAS..65..710E
Es_1904b Mb - Espin, T.E. 1904MNRAS..64..675E
Es_1904b MNRAS 64, 675, 1904
Es_1905 Mb - Espin, T.E. 1905MNRAS..65..710E
Es_1905 MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a Mb - Espin, T.E. 1906MNRAS..66..141E
Es_1906a MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b Mb - Espin, T.E. 1906MNRAS..66..430E
Es_1906b MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C Mb - Espin, T.E. 1906QB821.B972.....
Es_1906C cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D Mb - Espin, T.E. 1906MmRAS..56....1L
Es_1906D cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a Mb j Espin, T.E. 1907MNRAS..67..190E
Es_1907a MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b Mb - Espin, T.E. 1907MNRAS..67..495E
Es_1907b MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a Mb j Espin, T.E. 1908MNRAS..68..202E
Es_1908a MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b Mb - Espin, T.E. 1908MNRAS..68..523E
Es_1908b MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c - Espin, T.E. 1908JRASC...2..248E
Es_1908c JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909) 1909MNRAS..69..218E
Es_1909a Mb j Espin, T.E. 1909MNRAS..69..218E
Es_1909a MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b Mb j Espin, T.E. 1909MNRAS..69..604E
Es_1909b MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a Mb - Espin, T.E. 1910MNRAS..70..237E
Es_1910a MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b Mb - Espin, T.E. 1910MNRAS..70..541E
Es_1910b MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911 Mb - Espin, T.E. 1911MNRAS..71..217E
Es_1911 MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912 Mb - Espin, T.E. 1912MNRAS..72..191E
Es_1912 MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913 Mb j Espin, T.E. 1913MNRAS..73..162E
Es_1913 MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914 Mb j Espin, T.E. 1914MNRAS..74..244E
Es_1914 MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a Mb - Espin, T.E. 1915MNRAS..75..203E
Es_1915a MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b Mb - Espin, T.E. 1915MNRAS..75..555E
Es_1915b MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c Mb - Espin, T.E. 1915MNRAS..76..210E
Es_1915c MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917 Mb - Espin, T.E. 1917MNRAS..77..236E
Es_1917 MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918 Mb j Espin, T.E. 1918MNRAS..78..189E
Es_1918 MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919 Mb - Espin, T.E. 1919MNRAS..79..211E
Es_1919 MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920 Mb - Espin, T.E. 1920MNRAS..80..329E
Es_1920 MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921 Mb j Espin, T.E. 1921MNRAS..81..232E
Es_1921 MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922 Mb - Espin, T.E. 1922MNRAS..82..187E
Es_1922 MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923 Mb - Espin, T.E. 1923MNRAS..83..154E
Es_1923 MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924 Mb - Espin, T.E. 1924MNRAS..84..162E
Es_1924 MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a Mb - Espin, T.E. 1925MNRAS..85..276E
Es_1925a MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b Mb - Espin, T.E. 1925MNRAS..86...79E
Es_1925b MNRAS 86, 79, 1925
Es_1926 Mb - Espin, T.E. 1926MNRAS..86..131E
Es_1926 MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927 Mb - Espin, T.E. 1927MNRAS..87..215E
Es_1927 MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928 Mb - Espin, T.E. 1928MNRAS..88..185E
Es_1928 MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929 Mb - Espin, T.E. 1929MNRAS..89..268E
Es_1929 MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930 Mb - Espin, T.E. 1930MNRAS..90..317E
Es_1930 MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931 Mb - Espin, T.E. 1931MNRAS..91..294E
Es_1931 MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a Mb - Espin, T.E. 1932MNRAS..92..214E
Es_1932a MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B Mb - Espin, T.E. 1932QB821.A43......
Es_1932B cited in ADS (Aitken Double Star Cat.), 1932
Es_1933 Mb - Espin, T.E. 1933MNRAS..93..192E
Es_1933 MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A Mb - Espin, T.E. 1937AnLei..18....1S
Es_1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20459+4448 ES 2701 2008 13 81 51.1 8.76 9.24 A7V N D 204555.66+444802.0
20459+4448 ES 2701 2013 17 80 50.9 8.76 9.24 A7V N 204555.66+444802.0
20459+4448 ES 2701 2015 19 81 51.0 8.76 9.24 A7V N 204555.66+444802.0
20459+4448 ES 2701 2019 24 81 50.9 8.76 9.24 A7V N 204555.66+444802.0

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

 
 
WDS 20459+4448 ES 2701 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20459+4448 ES 2701 : MEASURES
 
 
No records found.

 
 
WDS 20459+4448 : VIRTUAL EYEPIECE
 
 

20459+4448 ES 2701A mag 8.76 Sp A7V 20459+4448 ES 2701B sep 36.6 P.A. 77.10 mag 9.24 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 20459+4448 : ALADIN DSS IMAGE @ 20h 45m 55.66s +44° 48' 02.0"
 
 
 
 
WDS 20459+4448 ES 2701 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20459+4448 ES 2701 distance=0' 20461+4452 ES 30 distance=5' 20472+4427 COU2424 distance=25' 20449+4425 ES 1332 distance=26' 20433+4456 ES 2699 distance=30' 20434+4501 ES 668AB distance=30' 20434+4501 ES 668AC distance=30' 20434+4501 FYM 322AD distance=30' 20432+4458 BKO 159 distance=31' 20432+4431 COU2422 distance=34' 20436+4514 CBL 85 distance=37' 20494+4452 TDS1103 distance=38' 20461+4410 BRT2275 distance=39' 20494+4458 GRV 384 distance=39' 20440+4521 KPP3361 distance=40' 20485+4519 LDS2456 distance=40' 20427+4521 ES 1270 distance=47' 20473+4535 HO 280 distance=50' 20490+4525 SMA 120 distance=50' 20504+4518 SMA 121 distance=50' 20492+4525 COU2646 distance=51' 20416+4424 COU2541 distance=52' 20461+4353 GRV 378 distance=55' 20500+4521 ES 2702 distance=55' 20414+4517 H N 73 (Deneb) distance=56' 20511+4459 LDS2459 distance=57' 20506+4421 CHN 29 distance=57' 20489+4537 HDS2965 distance=59' 20509+4421 CHN 30AB distance=60' 20509+4421 CHN 30Aa,Ab distance=60' 20504+4525 LDS5912 distance=60' 20420+4532 BRT2271 distance=61' 20421+4532 BKO 157 distance=61' 20501+4404 STT 595AB distance=63' 20501+4404 STG 9AC distance=63' 20501+4404 FYM 92AD distance=63' 20501+4404 FYM 92AE distance=63' 20501+4404 FYM 92AF distance=63' 20464+4551 CVR 230 distance=64' 20476+4347 CHN 28 distance=64' 20473+4345 COU2425 distance=65' 20514+4519 ARG 40 distance=66' 20512+4415 CHN 31 distance=66' 20521+4438 HER 18 distance=67' 20455+4338 A 611 distance=71' 20452+4337 ES 1449 distance=72' 20423+4549 BKO 158EH distance=72' 20423+4549 BKO 158EF distance=72' 20423+4549 BKO 158EG distance=72' 20423+4549 BKO 158EI distance=72' 20423+4549 STT 411AB distance=73' 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 20459+4448 ES 2701 81 50.9
Show 20461+4452 ES 30 57 17.1 5
Show 20472+4427 COU2424 255 0.5 25
Show 20449+4425 ES 1332 325 7.0 26
Show 20433+4456 ES 2699 296 40.1 30
Show 20434+4501 ES 668 AB 68 5.2 30
Show 20434+4501 ES 668 AC 269 23.4 30
Show 20434+4501 FYM 322 AD 200 18.7 30
Show 20432+4458 BKO 159 37 13.2 31
Show 20432+4431 COU2422 236 1.3 34
Show 20436+4514 CBL 85 166 17.7 37
Show 20494+4452 TDS1103 200 0.8 38
Show 20461+4410 BRT2275 10 2.8 39
Show 20494+4458 GRV 384 222 22.1 39
Show 20440+4521 KPP3361 134 2.2 40
Show 20485+4519 LDS2456 236 18.0 40
Show 20427+4521 ES 1270 289 5.9 47
Show 20473+4535 HO 280 75 11.7 50
Show 20490+4525 SMA 120 313 4.3 50
Show 20504+4518 SMA 121 32 11.6 50
Show 20492+4525 COU2646 266 0.4 51
Show 20416+4424 COU2541 25 0.4 52
Show 20461+4353 GRV 378 135 35.3 55
Show 20500+4521 ES 2702 348 8.6 55
Show Deneb 20414+4517 H N 73 105 75.6 56
Show 20511+4459 LDS2459 228 43.7 57
Show 20506+4421 CHN 29 52 5.3 57
Show 20489+4537 HDS2965 282 0.1 59
Show 20509+4421 CHN 30 AB 92 2.7 60
Show 20509+4421 CHN 30 Aa,Ab 108 0.6 60
Show 20504+4525 LDS5912 252 17.4 60
Show 20420+4532 BRT2271 269 4.5 61
Show 20421+4532 BKO 157 240 8.9 61
Show 20501+4404 STT 595 AB 48 55.4 63
Show 20501+4404 STG 9 AC 83 102.7 63
Show 20501+4404 FYM 92 AD 242 51.8 63
Show 20501+4404 FYM 92 AE 190 35.2 63
Show 20501+4404 FYM 92 AF 80 46.9 63
Show 20464+4551 CVR 230 7 112.9 64
Show 20476+4347 CHN 28 57 5.0 64
Show 20473+4345 COU2425 58 0.2 65
Show 20514+4519 ARG 40 250 9.2 66
Show 20512+4415 CHN 31 47 6.7 66
Show 20521+4438 HER 18 85 60.7 67
Show 20455+4338 A 611 176 0.3 71
Show 20452+4337 ES 1449 57 6.7 72
Show 20423+4549 BKO 158 EH 340 51.6 72
Show 20423+4549 BKO 158 EF 281 24.9 72
Show 20423+4549 BKO 158 EG 221 28.7 72
Show 20423+4549 BKO 158 EI 236 39.6 72
Show 20423+4549 STT 411 AB 349 31.8 73

 
 
WDS 20459+4448 : COMPONENTS
 
 
  A
B pa=77.1°
sep=36.60"
 
 
20459+4448 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204555.66+444802.0 Mag 8.76 Spectral class A7V (white)
PmRA 5.00 PmDE -5.0 Tycho2 3178-00353-1
Tycho2
Tycho2 3178-00353-1 Pflag RAmdeg 311.48191398 DEmdeg 44.80055740
PmRA 4.3 PmDE -3.3 E RAmdeg 7 E DEmdeg 7
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.11 EpDEm 1991.18
Num 6 Q RAmdeg 1.0 Q DEmdeg 0.9 Q pmRA 0.9
Q pmDE 0.8 BTmag 8.925 E BTmag 0.017 VTmag 8.759
E VTmag 0.014 Prox 514 TYC T HIP
CCDM RAdeg 311.48190000 DEdeg 44.80056528 EpRA 1990 1.67
EpDE 1990 1.72 E RAdeg 6.8 E DEdeg 7.0 Posflg
Corr 0.1
 
 
20459+4448 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204559.01+444810.1 Mag 9.24 PmRA -10.00
PmDE -19.0 Tycho2 3178-01044-1 Calc delta mag 0.48 Calc coord yes
Tycho2
Tycho2 3178-01044-1 Pflag RAmdeg 311.50170929 DEmdeg 44.80290529
PmRA -9.6 PmDE -17.2 E RAmdeg 11 E DEmdeg 11
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.48 EpDEm 1990.46
Num 6 Q RAmdeg 0.8 Q DEmdeg 1.1 Q pmRA 0.8
Q pmDE 1.2 BTmag 9.603 E BTmag 0.022 VTmag 9.242
E VTmag 0.018 Prox 514 TYC T HIP
CCDM RAdeg 311.50174056 DEdeg 44.80294583 EpRA 1990 1.65
EpDE 1990 1.67 E RAdeg 10.6 E DEdeg 10.6 Posflg
Corr 0.1