Observations - Hints


Worthwhile Regions of the Sky




Last update: 2017-07-26


- Planetary Nebulas (Mon) -

And (1) Cep (8) Dra (2) Lep (1) Peg (2) Tau (1)
Aql (17) Cet (1) Eri (1) Lyn (1) Per (4) UMa (1)
Aqr (2) Cnc (1) Gem (3) Lyr (3) Pup (2) Vul (3)
Aur (1) Crv (1) Her (5) Mon (1) Sct (2)
Cam (1) Cyg (19) Hya (1) Oph (1) Sge (3)
Cas (5) Del (3) Lac (1) Ori (2) Sgr (3)

NGC2346 (PN)

© DSS II (red) - 5×5'
Name: NGC2346, PK215+3.1, H4.65, Butterfly Nebula, The Hourglass
Type: PN
Constellation: Mon
Coordinates: 07h09m22.52s / -00°48'23.6"
Brightness / Size: v11.6 mag / 1.0×0.9'
Bright planetary. UHC and [OIII] filter show great effect.

8" f/6, 80x + [OIII], Bortle 4, SQM-L 21.0
SQM-L 20.2: At 80x without filter the 10.96 mag central star is dominating. With averted vision the nebula is very small and faint and can be easily overlooked. At 150x the nebula is more evident with averted vision and shows declining edges. At 80x with [OIII] filter the planetary appeared very bright and was visible with direct vision, whereby also the visual size increased in comparison to without a filter. The central star was not perceptible anymore. The nebula was an evenly bright disc with slightly declining edges. At 150x with [OIII] filter the central star was still not visible, the nebula seemed to be slightly oval. With UHC filter the planetary and the central star was quite well visible at 150x.