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IC 4634 (14,135 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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IC 4634

IC 4634, ESO 587-1, HD 153655, Hen 2-189, PK 000+12 1, PN G000.3+12.2, PN VV' 151, PN VV 85, PN StWr 4-1, PN Sa 2-164

RA: 17h 01m 33.57s
Dec: −21° 49′ 32.8″

Con: Ophiuchus
Ch: MSA:1395, U2:337, SA:22


(reference key)

Type: planetary nebula

Mag: B=12.3, V=9.5

Size: ?
PA: ?

Modern observations

Tom Lorenzin

Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12M; 20" x 10" extent; soft, fuzzy ellipse surrounds 14M star; not a disc! TOUGH! use >200x; GLOB N6287 is 70' to SE."

Steve Coe

Steve Coe, in "SACNEWS On-line for July 1996", using a 13-inch reflector, notes: "IC 4634 is a pretty bright, but extremely small planetary. This elongated, greenish dot is floating in a very nice Milky Way field at 17 hr 01.6 min and -21 50. Averted vision makes it grow to about three times the size of the Airy disk in my 13" at 330X.

Steve Coe, using a 13" f/5.6, notes: "Pretty bright, extremely small planetary. It is somewhat elongated. This greenish dot is floating in a very nice Milky Way field. Averted vision makes it grow to about three times the Airy disk."

Contemporary observations

Tom Bryant

2010 9 6 20:32:29

Observing site: Little Tycho Observatory

Telescope: C-8

[17h 1m 36s, -21 50' 0"] A small, round spot in the sky, well seen despite the light pollution and the dusk.

Magda Streicher

2010 June 7

Location: Polokwane

16-inch f/10 SCT (127x 290x 462x)

Very much an icy blue dot. I use averted vision and it pops out to the brightest object in the field. The use of a 0111 (oxygen filter) brings out the planetary as a distant frosted globe.

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