Harold Corwin

The IC position for this well-known double Markarian galaxy is badly off, though Dreyer copied it correctly from Bigourdan's list in Comptes rendus. Bigourdan gives no correction or notes to the position that I've been able to find in his voluminous publications.

Fortunately, we can identify his comparison star (GSC 04368-00774) and reduce his four measurements on 24 January 1900. That position is very accurate and identifies the galaxy exactly.

I find his description interesting, too: "A little stellar object, pretty granulated, surely nebulous, vaguely round and 20 arcsec in diameter; it is a little brighter toward the center, where I can see several very faint, small, stellar points."

This corresponds well to the appearance on modern plates where the galaxies are seen to have at least five bright knots involved. I give positions for these in the table, and calculate the positions for the two galaxies -- and the entire system -- from these five.

― IC Notes by Harold Corwin

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