Iiro's DeepSky Sketches

Name: NGC 7662	Other name: PK 106-17.1
RA: 23h 25.9m	DEC: +42° 32'
Constellation: AND
Type: Planetary nebula
Magnitude: 8.6
Size: 17'' x 14''
Surface brightness: 5.6
Brightest star: 14
Classification: 4(3)
Description: !!! Planetary or annular neb,vB,pS,R,blue
Notes: Blue Snowball Nebula,H IV 18,Barnard-cent * variable?
Observer: Iiro Sairanen
Location: Härskiänsaari, Ruokolahti, Finland
Date: 6/7.11.2008 20:10
Instrument: Newton 457/2280 mm
Magnification: 653x	Filter: -
Field: 8'	Seeing: 2
Background sky: 3	NE lim mag: 6.3
Visuality: I	Height: 70°
Weather: -5°C, 56% Moon in Capricornus
Description: Blue Snowball Nebula. A very bright blue disk at lower powers. Instead 653x shows beautiful details. There is an obvious ring which is surrounded by gradually fainting halo. With averted vision it's possible to see some weak brightenings in this halo. The central star was also visible without trouble. Blue.
Updated: 29.11.2008 17:44
Name: NGC 7662	Other name: PK 106-17.1
RA: 23h 25.9m	DEC: +42° 32'
Constellation: AND
Type: Planetary nebula
Magnitude: 8.6
Size: 17'' x 14''
Surface brightness: 5.6
Brightest star: 14
Classification: 4(3)
Description: !!! Planetary or annular neb,vB,pS,R,blue
Notes: Blue Snowball Nebula,H IV 18,Barnard-cent * variable?
Observer: Iiro Sairanen
Location: Manskivi, Hollola, Finland
Date: 6/7.9.2002 0:05
Instrument: Newton 457/2280 mm
Magnification: 305x	Filter: OIII
Field: 10'	Seeing: 2
Background sky: 4	NE lim mag: 6.2
Visuality: I	Height: 0°
Weather: +9°C
Description: Soikea sininen levy, jonka keskellä selvä reikä. Reiän pohjoisreuna erittäin selvärajainen kun taas pohjoisreuna epäselvempi ja diffuusimpi. Keskustähteä ei näkynyt sumun seasta. Muistuttaa suuresti M57:ää, mutta on huomattavasti pienempi. OIII-suodin ei paranna kohteen näkymistä merkittävästi.
Updated: 17.2.2003 12:12
Name: NGC 7662	Other name: PK 106-17.1
RA: 23h 25.9m	DEC: +42° 32'
Constellation: AND
Type: Planetary nebula
Magnitude: 8.6
Size: 17'' x 14''
Surface brightness: 5.6
Brightest star: 14
Classification: 4(3)
Description: !!! Planetary or annular neb,vB,pS,R,blue
Notes: Blue Snowball Nebula,H IV 18,Barnard-cent * variable?
Observer: Iiro Sairanen
Location: Lakasenpelto, Imatra, Finland
Date: 4/5.9.1999 1:35
Instrument: Newton 110/805 mm
Magnification: 162x	Filter: -
Field: 15'	Seeing: 2
Background sky: 4	NE lim mag: 5.2
Visuality: -	Height: 0°
Weather: Misty, windy, +16°C
Description: Vaaleansininen ellipsin muotoinen sumu. Kunnon havaitsemiseen tarvitsisi paljon suurempaa suurennusta ja suurempaa putkea, koska kohde on hyvin pieni, joskin kirkas.
Updated: 18.2.2003 9:29