"Deepest" target viewed with a 16" Dob

[GrassLakeRon]

So what has your deepest target you have viewed with a 16" Dob? Where were you you and what was the conditions during viewing?

[MatthewBielski]

i had a 16" Meade Lightbridge for some time
if i remember correctly i did view IC 1101 an elliptical galaxy at 1.15 billion light years distance and 13.2 mag.... it was fairly easy in moderately dark skies sqm 20.8 or so
if your talking point source object i remember viewing 3C273 a quasar at 2.4 bilion light yeas distant ... again an easy grab at a mag of 12.9
matt

[Don Pensack]

A 16" should fairly easily pick up galaxies in the Abell Galaxy cluster 2065 in Corona Borealis.
There are at least 3 or more at mag.15-15.5 in that cluster, at 1.05 billion light years.
I've seen 3 in my 12.5" in skies of mag.21.4+.
Quasars might be visible out to 8 billion light years, so I wouldn't count those.
I attach a few distant galaxies for your consideration.

Const / Galaxy / Group association / Mag. /Distance

Andromeda NGC910 Abell 347 10.2 210-300mly
Andromeda NGC708 Abell 262 13.7 210mly
Aquarius PGC97456 Abell 2448 16.0 1.1bly
Cancer PGC24340 Abell 690 14.9 1.15bly
Com.Ber. NGC4874 Abell 1656 12.7 330mly
Com.Ber. IC4017 17.1 2.2bly
CorBor NGC6086 Abell 2162 12.7 450mly
CorBor NGC6160 Abell 2197 13.7 420mly
CorBor PGC54876 Abell 2065 15.4 1.05bly
CorBor PGC54883 Abell 2065 15.4 1.05bly
CorBor PGC54888 Abell 2065 15.7 1.05bly

Hercules 2MASX J16394598+4609058 15.7 3.56bly
Hercules 2MASX J17222717+3207571 Abell 2261 16.0 3bly
Hercules PGC1981854 Abell 2261 16.3 3bly largest galaxy in universe?
Hercules PGC060004 16.4 2.2bly
Hercules Abell 2151 500mly bightest gal in group 13.5
Hercules PGC2276277 17.1 3.31bly
Hydra Abell 838 15.0 675mly
Leo CGCG122-067 12.6 1.2bly
Leo NGC3842 Abell 1367 12.8 330mly
Leo 2MASX J10255796+1241086 15.4 1.55bly
Leo PGC37477 Abell 1413 13.9 1.82bly
Leo 2MASX J09562806+1831023 Abell 900 15.8 2bly
Leo PGC1561869 14.6 2.15bly
Lynx NGC2484 13.4 600mly
Lynx NGC2832 Abell 779 13.2 350mly
Lynx PGC23645 Abell 655 15.1 1.8bly
Pegasus STEPHAN'S QUINTET Hickson 92 13.2 210-340mly
Perseus NGC1274 Abell 426 15.1 250mly
Pisces PGC71834 16.0 1.1bly
Serpens IC 1103 14.5 1.0bly
Ursa Maj NGC 3179 13.7 380mly
Ursa Maj PGC46931 Abell 1738 14.7 1.55bly
Virgo IC1101 Abell 2029 14.7 1bly incredibly massive galaxy
Virgo Abell 1689 2.4bly ??