|O7||4.2||15.1a||3, 6||Cohen (1977)|
|3.6||1, 6||Humphreys et al. (1980)|
|A0||2.5||3.5 0.5||Goodrich (1986)|
|Estimate of the star's spectral type is listed in Col. 1; interstellar extinction toward the object in Col. 2; object's visual brightness in Col. 3; distance toward the object in Col. 4; and a reference to the estimates in Col. 5; a the brightness for the knot N0.|
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