Tag Archives: NGC 1499

California, NGC 1499

23дек
Despite its bright integrated magnitude the California nebula is one of the more illusive objects in the sky. Without the aid of a filter it is one of the most difficult objects to observe in any aperture. Burnham’s describes this nebula as “A difficult object visually.” But in his day they didn’t have the deep sky filters that are available to us. With an OIII, UHC, or H-Beta filter it is visible to the unaided eye!
That doesn’t make it easy, however. The basic problem with observing this nebula is that it is very large. Even though its total integrated magnitude is that of a 5th magnitude star, this light is spread over an area larger than 2.5o. The large aperture instruments that collect the most light also give smaller fields of view. The result is that the apparent surface brightness of the nebula is more or less constant with aperture. In fact, it is probably best detected with a small aperture that affords a field of view large enough to fit the entire nebula.

Imaging telescopes or lenses: AT65EDQ 65mm f/6.5 ED quadruplet astrograph AT65EDQ
Imaging cameras: QSI690
Mounts: Celestron Advanced VX
Guiding telescopes or lenses: AT65EDQ 65mm f/6.5 ED quadruplet astrograph AT65EDQ
Guiding cameras: QHY5L-II QHY5 L – II MONO
Software: PHD2 Guiding, PixInsight, Main Sequence Software Sequence Generator Pro, Photoshop CS5
Filters: Astrodon Blue Tru-Balance E-Series Gen 2, Astrodon Green Tru-Balance E-Series Gen 2, Astrodon Red Tru-Balance E-Series Gen 2, Astrodon L
Accessories: Feathertouch Motorised Focuser HSM30
Resolution: 3620×5093
Dates: Dec. 15, 2014
Frames:
Astrodon Blue Tru-Balance E-Series Gen 2: 11×300″ -20C bin 1×1
Astrodon Green Tru-Balance E-Series Gen 2: 11×300″ bin 1×1
Astrodon Red Tru-Balance E-Series Gen 2: 11×300″ bin 1×1
Integration: 2.8 hours
Avg. Moon age: 22.56 days
Avg. Moon phase: 45.62%
RA center: 60.127 degrees
DEC center: 36.538 degrees
Orientation: 97.280 degrees
Field radius: 1.566 degrees
Locations: Greenville, Home, Greenville, NC, United States

Authors:

Info: http://observing.skyhound.com/archives/dec/NGC_1499.html

Photo: Astrowood

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California Nebula

30 ноября

 

The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies.[1] It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei (also known as Menkib, seen at center below it in the inset at right).

Imaging telescopes or lenses: Takahashi FSQ 106 ED

Imaging cameras: ATIK 460 EX Mono
Mounts: Takahashi EM 200 Temma 2
Guiding telescopes or lenses: Takahashi FS 60 CB
Guiding cameras: QHY CCD QHY5-II
Software: Pleiades Astrophoto PixInsight , Main Sequence Software Sequence Generator Pro, PHD 2
Accessories: Atik EFW2, Technical Innovations RoboFocus
Resolution: 2670×2120
Dates: Oct. 30, 2014, Oct. 31, 2014
Locations: La Azohia
Frames: Astronomik Ha 12nm 2″: 16×600″ bin 1×1
Integration: 2.7 hours
Avg. Moon age: 6.72 days
Avg. Moon phase: 43.03%

Аuthor: Kinch

Аstrophotography of the day of  SPONLI, 30.11.2014

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California Nebula

22 ноября

 

The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies.[1] It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei (also known as Menkib, seen at center below it in the inset at right).

Imaging telescopes or lenses: William Optics FLT 98
Imaging cameras: QSI 583wsg
Mounts: Astro-Physics AP 900 GTO
Guiding telescopes or lenses: William Optics FLT 98
Guiding cameras: Starlight Xpress Lodestar Lodestar Autoguider
Filters: Astrodon 3nm OIII, Baader 7nm Ha, Astrodon 5nm S2
Resolution: 3306×2445
Frames: 33×1800″
Integration: 16.5 hours

Аuthor: marc

Astrophotography of the day of  SPONLI, 22.11.2014

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California Nebula

14 ноября

The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies.[1] It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei (also known as Menkib, seen at center below it in the inset at right).

Imaging telescopes or lenses: TeleVue NP101is
Imaging cameras: QSI 683 ws-8
Mounts: Orion Atlas EQ-G
Guiding telescopes or lenses: KW Telescopes KWIQ Guider
Guiding cameras: QHY5
Software: PixInsight
Filters: Astronomik 12nm OIII Filter, Astronomik 12nm H-Alpha, Astronomik 12nm SII Filter
Resolution: 3266×2441
Dates: Oct. 23, 2014
Locations: Rodeo, NM, USA
Frames:
Astronomik 12nm H-Alpha: 9×480″ -20C bin 1×1
Astronomik 12nm OIII Filter: 9×360″ -20C bin 2×2
Astronomik 12nm SII Filter: 9×360″ -20C bin 2×2
Integration: 3.0 hours
Darks: ~20
Flats: ~10
Bias: ~40
Avg. Moon age: 28.65 days
Avg. Moon phase: 0.87%
RA center: 60.399 degrees
DEC center: 36.556 degrees
Pixel scale: 2.582 arcsec/pixel
Orientation: 78.390 degrees
Field radius: 1.462 degrees

Аuthor: Canrith314

Astrofotography of the day of SPONLI, 14.11.2014

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California Nebula

0032072b9cafc1a3c5e5015fc967ee41.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Lensman57

The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei (also known as Menkib, seen at center below it in the inset at right).

The California Nebula was discovered by E. E. Barnard in 1884.

Imaging telescopes or lenses: William Optics Star 71 Astrograph
Imaging cameras: ATIK 383L+ mono, Canon 1100D modded
Mounts: SW HEQ 5 Pro SynScan
Software: Pixinsight PixInsinght 1.8 RC7
Filters: Baader Ha 1.25″ Filter 7nm, Astronomik Clip CLS
Resolution: 1500×948
Dates: Oct. 5, 2014
Integration: 0.0 hours
Avg. Moon age: 10.86 days
Avg. Moon phase: 83.71%
RA center: 60.398 degrees
DEC center: 36.285 degrees
Pixel scale: 6.396 arcsec/pixel
Orientation: -179.091 degrees
Field radius: 1.577 degrees

Аuthor: Lensman57, 07.10.2014

AstroPhotography of the day of SPONLI

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California nebula

614e7da2ed26569dccf8402485395341.1824x0_q100_watermark

The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei (also known as Menkib.
The California Nebula was discovered by E. E. Barnard in 1884.

Imaging telescopes or lenses: Orion 80ED
Imaging cameras: Canon EOS 1000D / Rebel XS
Mounts: Orion Atlas EQ-G
Guiding cameras: Orion Star Shoot Planetary Imager & Autoguider
Focal reducers: Orion 0.85x Reducer/Corrector
Software: DeepSkyStacker, PHD guiding, photoshop, Canon EOS
Filters: Astronomik Ha
Dates: Dec. 29, 2011, Jan. 15, 2012
Frames:
17×480″ ISO1600
Astronomik Ha: 11×720″ ISO1600
Integration: 4.5 hours

Author: Mike Carroll
AstroPhotography of the day by SPONLI 11 Sep 2014

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California Nebula

1e19109d7b40bfcfce2812996aca0f1d.1824x0_q100_watermark
The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California on long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei.

Imaging telescopes or lenses: Orion Optics UK CT8
Imaging cameras: SBIG ST-8300C, SBIG ST-8300M
Guiding telescopes or lenses: Orion Optics UK CT8
Guiding cameras: Starlight Xpress Lodestar guide camera
Focal reducers: Baader Planetarium RCC
Software: Maxim DL, photoshop
Filters: Baader Planetarium UV/IR Cut Filter, Baader Planetarium 7nm H-Alpha
Accessories: Celestron Radial Guider
Dates: Oct. 3, 2013, Oct. 4, 2013
Frames: 
Baader Planetarium 7nm H-Alpha: 37×900″ bin 1×1
Baader Planetarium UV/IR Cut Filter: 26×300″ bin 1×1
Integration: 11.4 hours

Author: Jacek Bobowik
AstroPhotography of the day by SPONLI 27 June 2014

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