HS1626+6433 -- Quasar in Draco
The most distant object I have 'seen' -- 11.0 billion light years.
Dimmest object I have imaged and identified, apparent magnitude +16.3.
Captured 24 Jun 2021, 23:57 hrs ET, Springfield, VA, USA. Bortle 8 skies, Mallincam DS10C camera, Celestron 8 inch SCT f/10, exposure 7 sec, gain 20, bin 2, live stack of 50 light frames, dark and flat frames subtracted, no filter.
Clouds: partly cloudy
Seeing: ok
Transparency: ok
Moon phase: 100%
From Astrometry.net:
FOV: 20 x 27 arcmin after crop
Resolution: 0.9 arcsec/pixel
Orientation: Up is xx
From NASA/IPAC Extragalactic Database (NED):
Cross-identifications: WISE J162645.60+642655.0; WISEA J162645.67+642655.0; 2MASS J16264568+6426551; 2MASSi J1626456+642655; KODIAQ J162645+642655
Distance: 11.0 billion light years
[Note: Estimated age of the Universe is 13.8 billion years. Measurement of distance is complex problem at this scale. ]
Redshift: z = 2.32
Type: QSO
Apparent magnitude: +16.3
Apparent size: --
Appearance: dim star-like object. Target area plate solved in Sharpcap; unambiguous visual ID via Stellarium.
Note to self: stars dimmer than the QSO are visible in the image, try to identify a mag + 17 or dimmer star.
HS1626+6433 -- Quasar in Draco
The most distant object I have 'seen' -- 11.0 billion light years.
Dimmest object I have imaged and identified, apparent magnitude +16.3.
Captured 24 Jun 2021, 23:57 hrs ET, Springfield, VA, USA. Bortle 8 skies, Mallincam DS10C camera, Celestron 8 inch SCT f/10, exposure 7 sec, gain 20, bin 2, live stack of 50 light frames, dark and flat frames subtracted, no filter.
Clouds: partly cloudy
Seeing: ok
Transparency: ok
Moon phase: 100%
From Astrometry.net:
FOV: 20 x 27 arcmin after crop
Resolution: 0.9 arcsec/pixel
Orientation: Up is xx
From NASA/IPAC Extragalactic Database (NED):
Cross-identifications: WISE J162645.60+642655.0; WISEA J162645.67+642655.0; 2MASS J16264568+6426551; 2MASSi J1626456+642655; KODIAQ J162645+642655
Distance: 11.0 billion light years
[Note: Estimated age of the Universe is 13.8 billion years. Measurement of distance is complex problem at this scale. ]
Redshift: z = 2.32
Type: QSO
Apparent magnitude: +16.3
Apparent size: --
Appearance: dim star-like object. Target area plate solved in Sharpcap; unambiguous visual ID via Stellarium.
Note to self: stars dimmer than the QSO are visible in the image, try to identify a mag + 17 or dimmer star.