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Messier 40

[m40ds24.jpg]

M 40 (Winnecke 4). Double Star in Ursa Major. An optical double star.
RA=12 22.4, Dec=+58 05, m_v=8.4 mag, dim=0.8 arc min, dist=1.14 and 0.45 kly. Field: 24 arc min
Larger field image (Field: 30 arc min)

M40 page

Hartmut Frommert [contact]
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