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Ced 122

Ced 122

RA: 13h 24m 42s
Dec: −64° 01′ 0″

Con: Centaurus
Ch: MSA:1000, U2:451, SA:25

Ref: SIMBAD

(reference key)

Type: bright nebula

Mag: B=?, V=?

Size: ?
PA: ?

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Sketches  (1)

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Photos  (1)

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Published comments

Shapley, H. (1927)

A Large Unrecorded Nebula. Bulletin of the Harvard College Observatory, 843, 5.

Discovery note.

Cederblad, S. (1946) [VII/231]

Ced 122

Position (1900): RA 13 18, Dec - 63 30

Star: -62 2745 (Mp=0.83, V=1.05, SpT=B1)

Spectrum of nebula: continuous spectrum (inferred from sp.t. of illuminating star)

Classification: Neb associated with mainly one star (which may be multiple) - Large nebulous region illuminated by a star outside its border (eg. NGC 7000)

Size: 150'x150'

Notes: "Anon. 13h 18.0, -63 30'. Disc. Shapley 1926 (681). FA 19. R. Probably a case like the "North America Nebula",. The nebula seems to be connected with the coalsack. CPD -62 2745 = HD 108248,9 = Boss 16952,3."

Contemporary observations

Auke Slotegraaf

1994

This nebula is well shown on chart 451 of Uranometria 2000.0. I came across it on Wednesday 1994-02-09 with tripod-mounted binoculars. I had finished the nights observing and was scanning around the region, looking at the dark and light patches so common to this region of the milky way. At once an oval dark patch caught my eye - and then another to the southwest. This first patch lies at 13h 26, 63.5°. Due south of this patch, a loop of darkness, elongated west-east, could also be seen. I made a sketch of these and other dark patches around (see below), and was pleasantly surprised when I compared the sketch of darknesses with the nebula's outline as shown on the chart.

After preparing a detailed tracing of the stars in this region, I attempted to sketch it tonight, Saturday 1994-02-12, 02:00 SAST. But the sky lacked contrast, and the dark patches were not as visible as before.

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