The Box Nebula (NGC6445)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From Cambridge , the Box Nebula is visible in the dawn sky, rising at 00:59 (EDT) and reaching an altitude of 27° above the southern horizon before fading from view as dawn breaks at around 05:13.
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Name
The Box Nebula (NGC6445)
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Object type
Planetary nebula
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Position
| Right ascension: | 17h49m [1] |
| Declination: | −20°00' [1] |
| Constellation: | Sagittarius |
| Magnitude: | 11.20 (V) [1] 13.20 (B) [1] |
| Distance: | 2.5 kpc 8.1 klyr [2] |
| B-V Color (mag): | 2.00 |
Derived quantities
| Absolute mag (V): | -0.79 |
Sources