The Winnecke Catalog of Double Stars (original) (raw)

August Winnecke (1835-97) published a series of observations, entitled "Doppelsternmessungen" (Double Star Measurements), in Astronomische Nachrichten No. 1738 (Winnecke 1869). Within this paper, he reports of numerous observational results, obtained with various refractors from Bonn, Berlin, and Pulkovo. Besides reporting observations of wellknown pairs, he includes a list of seven "new" double stars, marked as "Nova" (latin for New; p 156 of the paper). He notes that he later found that three of them (30 Eri, Bradley 757, and 44 Cyg) had been recognized as double stars earlier by Peters and_Alvan Clarke_.

  1. Nova. W. 0.881 = BD +8 No 137. 9.0 and 9.3 m. 412, Pulk.
    1863,857 23:18 Sep 5.37" PA 131.0
    ,872 23:45 5.28" 129.5
    1863,86 Sep 5.325" PA 130.25
  2. Nova. 30 Eridani. 6 and 9.10 m. 412, Pulk.
    Winnecke found later that this star had been previously known as double. He suspected that "A" might be itself double, to be confirmed under better conditions.
    1863,824 4:00 PA 137.9
    ,870 4:48 Sep 8.28" 135.7
    1863,85 Sep 8.280" PA 136.80
  3. Nova. Bradley 757 = BD -1 No 882. 6.0 and 6.7 m. 320, Pulk.
    Winnecke found later that this star had been previously known as double.
    1863,870 Sep 1" PA 173.6 (est)
  4. Nova. Groombridge 1878. 9 and 9.3 m. 320, Pulk.
    Identified as Messier 40 by John Mallas around 1965 (Mallas 1966).
    1863,777 Sep 49.16" PA 88.02
  5. Nova. Lalande 25358. 9.5 and 9.5 m.
    1855,216 Sep 4,68" PA 165,23 480
    ,377 164,33 320
    1855,30 Sep 4.68" PA 164.78
  6. Nova. 44 Cygni. 6 m red-yellow and 8 m violet. 412, Pulk.
    Winnecke found later that this star had been previously known as double.
    1863,766 19:06 Sep 1,95" PA 157,4
    ,848 19:18 2,22 162,7
    1863,81 Sep 2,085" PA 160.05
  7. Nova. W. XXIII.544 = BD +30 No 4971. 8.5 and 10 m. 412, Pulk.
    1863,848 23:00 Sep 1.3" PA 166.5 (est)
    ,856 23:00 1.51" 170.5
    1863,85 Sep 1,510" PA 168.50 The author thanks Leos Ondrafor making a copy of the Winnecke paper available.

Astronomical Data of the Winnecke Double Stars

WNC # Con RA (2000.0) Dec m1/m2[/m3] Sp1/Sp2/[Sp3] Identification

WNC 1 Psc 00:58:01 +09:16.7 9.9/10.4 G5/? W. 0.881, BD+8 137, ADS 802 WNC 2 Eri 03:52:42 -05:21.7 5.4/10.6 B8V/F4V 30 Eri, ADS 2832, BD-05 769 WNC 3 Ori 05:23:51 -00:52.0 6.6/8.0/8.1 F7V/F8V/F8V Bradley 757, BD -1 882, ADS 3991, HD 35317, CCDM J05239-0052 WNC 4 UMa 12:22:16 +58:05.0 9.6/10.1 G0/F8 M40, Groombridge 1878, BDS 6146, HD 238107/8 WNC 5 Vir 13:45:33 -03:01.0 9.6 G0/ Lalande 25358, ADS 9015, BD-02 3728 WNC 6 Cyg 20:31:00 +36:56.2 6.2/ F5Iab 44 Cyg, ADS 13949, BD+36 4105, CCDM J20310+3656 WNC 7 Peg 23:32:33 +31:26.8 8.6 F8/ W. XXIII.544, BD+30 4971, ADS 16822

Hartmut Frommert
Christine Kronberg
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