Astronomy
1888
Photograph of the Andromeda Galaxy (M31), taken by Isaac Roberts using a twin telescope (20-inch reflector & 7-inch refractor) by Howard Grubb of Dublin. Taken with an exposure of 4 hours on 29th December 1888 at his observatory & home at Maghull, near Liverpool.
1923
Film positive (7 3/4" x 9 7/8") Nebula N.G.C. 5194/5.M51, exposure 10 3/4 hours, 60-inch telescope, enlarged 6.3 diam.
Film positive (9 7/8" x 7 3/4") Nebula N.G.C. 4594, exposure 2 1/4 hours, 60-inch Telescope
1912
Spiral Nebula in Serpens, N.G.C, 5921, Lick Observatory, 1912 June 10, 36-inch Reflector, focal length, 210 in, exposure, 3 hours, 8" x 10"
1929
Glass positive:- spiral Nebula in Libra, N.G.C. 5850, Mount Wilson Observatory, 100-inch Reflector, 8 1/2" x 6 1/2"
1910-07
Nebula in Cygnus, N.G.C.6992 R.A., 20h 52m, decl, + 31[o] 16', G.W. Ritchey, Mount Wilson Observatory, 1910, July 2-4, 60-inch Reflector, focal length, 299 in, exposure, 10 1/4 hours.
1934
Transparency, 14"x17", Great Nebula in Andromeda (central portion) M.31. R.A.S. No. J.63
Film positive (7 3/4" x 9 7/8") Nebula N.G.C. 4565, exposure 5 hours, 60-inch Telescope, enlarged 7/5 diam
1895
Great star cloud near Messier 11, E.E. Barnard, Lick observatory 1895, August 16, 6-inch portrait lens, focal length, 31in, exposure 5h 10m
Film positive (5" x 5 1/2") Nebula N.G.C. 3115 exposure 13 hours 60-inch telescope
Film positive (9 7/8" x 7 3/4") nebula N.G.C. 5866, exposure 2 3/4 hours, 60-inch Telescope, enlarged 11.4 diam.
Glass positive:- Spiral Nebula in Leo, N.G.C. 2903-5, Mount Wilson Observatory, 100-inch Reflector, 8 1/2" x 6 1/2"
Glass positive:- Spiral Nebula in Virgo, N.G.C. 4567-8, Mount Wilson Observatory, 60-inch Reflector, 8 1/2" x 6 1/2"
1907
Glass positive:- Spiral Nebula, N.G.C.253, (H.V.I Cetus), Lick Observatory, 1907, November 7, 36-inch Reflector, 8 1/2" x 6 1/2"
1910-07-04
Nebula in Cygnus; NGC 6960; RA, 20h 40m. Decl., + 30 degrees 13' G.W. Ritchey, Mount Wilson Observatory. 1910, July 4 and 5. 60-inch Reflector; Focal length, 299 in. Exposure, 6 1/2 hours.
1894
Coma Berenices E.E. Barnard, 1894, March 9, exposure, 4 hours, taken with the Crossley reflector of the Lick Observatory
Film positive 9 7/8 x 7 3/4) Nebula N.G.C. 7217, exposure 5 1/2 hours, 60-inch Telescope, enlarged 11.4 diam
Glass positive:- Nebula in Pegasus, N.G.C.7479, Mount Wilson Observatory, 60-inch Reflector, 8 1/2" x 6 1/2"
Glass positive:- Spiral Nebula in Hydra, M.83 N.G.C. 5236, Mount Wilson Observatory, 100-inch Reflector, 8 1/2" x 6 1/2"
1915
Glass positive:- Spiral Nebula in Virgo, N.G.C.5247, Lick Observatory, 1915, March 21, 36-inch reflector, focal length, 210 in, 8" x 10"
1966
Positive transparency on film, sixe 10" x 12", spiral galaxy in Triangulum (M33) extra galactic, 48" Schmidt Telescope Mt. Palomar, in colour
1889
Photograph of the Whirlpool Galaxy (M51), taken by Isaac Roberts using a twin telescope (20-inch reflector & 7-inch refractor) by Howard Grubb of Dublin. Taken with an exposure of 4 hours on 29th April 1889 at his observatory & home at Maghull, near Liverpool.
Positive transparency on film, size 8" x 10", cluster of nebulae in Corona Borealis, 200" Hale Telescope of Palomar Observatory
Positive transparency on film, size 13 3/8" x 10", stella populations I and II in the Andromeda Nebula and NGC 205, in blue and yellow light respectively, 200" Hale Telescope Mt. Palomar
1930
Glass positive of:- Group of Nebulae in Pegasus (Region surrounding N.G.C.7619). Mount Wilson Observatory 100-inch Reflector 10"x12". Prepared from print lent by Sir James Jeans
Glass positive of Hubble's classification of Nebulae (Extra-galactic, elliptical and irregular). Shows: E.0.N.G.C.3379; E.2.N.G.C.221 (M.32); E.5.H.G.C.4621 (M.59); E.7.N.G. C.3115; N.G.C.3034 (M.82); N.G.C.4449. Plate XIV Mount Wilson Contribution No.324. 12"x15" . Prepared from celluloid positive lent by Sir James Jeans.
Photograph of twin galaxies (M82 & 82) in the constellation of Ursa Major, taken by Isaac Roberts using a twin telescope (20-inch reflector & 7-inch refractor) by Howard Grubb of Dublin. Taken with an exposure of 3 1/2 hours on 31st March 1889 at his observatory & home at Maghull, near Liverpool.
1901
Glass positive of:- Great Nebula in Andromeda (M.31.N.G.C.224,205,221). Ritchey and Pease, Yerkes. 24-inch Relflector 1901, September 18. 14"x17". Prepared from negative R.A.S. No.98
Glass positive of:- Group of Nebulae in Coma Cluster. Mount Wilson Observatory 100-inch Reflector 10"x12". Prepared from celluloid positive lent by Sir James Jeans
1920
Spiral Nebula in Pisces; M.74. N.G.C.628. R.A., 1h 36m. Decl., + 15 degree 15'; E.P. Hubble, Mount Wilson Observatory, 1920; 60-inch Reflector; focal length, 299 in. exposure, 4 hours
1906
Positive on glass, enlarged at the National Observatory in Paris, of: Spiral nebula M.51 Andromedae (R.A. 0h. 37m. 17s. Dec.N.40 degrees 43.4') enlarged 3.4 times, scale 1mm to 24 seconds of arc, taken near Liverpool, December 29th 1888 between sidereal time 1h. 38m. and 5h. 45m, with an exposure of 4 hours.
Transparency, 8"x10", spiral Nebula in Ursa Major, M.101. R.A.S. No. J.85
Positive transparency on film, size 10" x 8", barred spiral Nebula in Pegasus (NGC, 7741) 200" Hale Telescope Mt. Palomar
1909
Glass positive of:- Great Nebulae in Andromeda (Southern portion) G.W. Ritchey, Mount Wilson Observatory 60-inch Reflector. 1909 October 13, 17"x14". Prepared from negative R.A.S. No. 402
Positive transparency on film, size 8" x 10", spiral Nebula in Canes Venaciti (M51), the satellite nebula in NGC 5195, known as the Whirlpool Nebula, 200" Hale Telescope Mt. Palomar
Positive transparency on film, size 8" x 8", spiral Nebula in Ursa Major, (M81) 200" Hale Telescope Mt. Palomar
1900
Positive on glass, enlarged at the National Observatory in Paris, of: Nebula, M.101 Ursae Majoris (R.A. 13h.59m.39s. Dec N. 54[o] 59 8') enlarged 6 times, scale 1mm to 14 seconds of arc taken at Crowborough, Sussex, 28th May, 1900 between sidereal time 14hr 36m and 17h 21m, with an exposure of 2h, 45m
1964
Transparency, 40"x51 1/2", of Spiral galaxy in Pegasus, N.G.C. 7217, photographed by the 200-inch Hale telescope
Nebula in Andromeda; N.G.C. 224, 205, 221. R.A., Oh 36m. Decl., + 40 degrees 30'. G.W. Ritchey and F.G. Pease, Yerkes Observatory; 1901, September 18; 24-inch Reflector; Focal length, 93 in. Exposure, 4 hours
1903
Positive on glass, enlarged at the National Observatory in Paris, of: Nebula M.94 Canum Venaticorum (R.A. 12h 46m 13.1s, Dec. N.41 degrees 39.5') enlarged 6 times, scale 1mm to 14 seconds of arc, taken at Crowborough, Sussex, on May 21st, 1903, between sidereal time 15h. 15m and 16h, 15m with an exposure of one hour
Positive transparency on film, size 10" x 12", Great Nebula in Andromeda (M31) extra galactic, 48" Schmidt Telescope Mt. Palomar, in colour
1905
Great star cloud in Sagittarius, E.E., Barnard, 1905, June 29 centre of plate, R.A., 17h 56m. decl, -28 degree exposure, 4hr. 53m enlarged 1.9 times, 10-inch Bruce doublet of the Yerkes Observatory Hooker expedition to Mount Wilson, California
