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US Naval Observatory
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In 1874 and 1882, the US Naval Observatory (USNO) sent multiple teams to time the transit of Venus with the aid of photographic equipment. Expedition photographs reproduced here are in the collection of the US Naval Observatory Library. These photos are not necessarily listed in any specific order.
Transit
of Venus party at Old Naval Observatory 1874, and instruments; Expeditions;
Spring, 1874
Plan
of Photoheliograph
Details
of Meridian Transit
Meridian Instrument
"Japan 1874 -D."
Chatham Island?
103
"Interior
of Japan Photographic Hut..."
"Box
room of photographic house ventilator"
"The
Photograph Measurer in Interior of Admiral's Office. Negative of Sun
leaning against books."
"The
Kerguelen heliostat, clock, and pier. In the distance this Crozet's (?) &
Siberia transit houses with doors open."
"New
Zealand heliostat & clock; photographic lens 40 ft. focus; flat mirror; iron
piers filled with sand."
"New
Zealand photographic lens; flat mirror, heliostat, and driving clock. In
the background the Chatham heliostat. On the right two transit houses."
(Numbered)
"Chatham Photographic House; New Zealand Photographic House, Kerguelen
Photographic House; Siberia Transit House; Crozet's Transit House; Kerguelen
Transit House; Dome of 26-inch refractor."
"View
of Venusia! from N.W.; New Zealand photographers in foreground."
"View
of two transit and photographic house from roof of observatory...Shows framework
for covering over ground between Kerguelen photographic lens and photographic
house. To be double boarded. Experimental tube in situ."
"Four
of the 8 equatorial houses. 10-inch Transit-circle room & 9-inch equatorial
dome in the distance."
"The
Equatorial houses with square revolving domes."
"View
of Equatorial houses and packing up in Equatorial."
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"Part of the Personnel- The 26-inch equatorial of the Naval Observatory in
the background."
 "The New Zealand party and ex officio members." |
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"Chatham
and New Zealand Transit houses in foreground on left. 10-inch Transit
circle [??] and 9-inch equatorial dome. Crozet's Transit house in distance
on right.
"View
of Transit, Photographic & Equatorial Houses from roof of Naval
Observatory."
"Interior
of Equatorial house showing tripod stand."
"View
of Washington Naval Observatory in the East. Equatorial houses from the
distance."
"Miss
Mitchell's Equatorial which resembles the (Venus transit) equatorial. View
taken in the interior of the 9-inch Equatorial dome; shows also the Observatory
Comet Seeker."
"The
Transit-instrument in its house."
"Washington
Observatory from the North."
"Washington
Observatory from the North."
"Washington
Observatory from the North-west."
Y.- Encampment of the U.S. Transit of Venus Party, on Wangoroa Bay, Chatham Island, December, 1874.
"QB512 no.1 ST 3 of 4"
"Fig 10"
"View in Venusea from the roof of the observatory."
"Is this S Newcomb's little joke? Does it mean just the ground
covered by apparatus for observing Transit of Venus."
"QB512 no.1 ST 1 of 4"
"Fig. 8 The heliostat and object glass"
"1874- Transit of Venus Equipment, Old Observatory, (temp eq)"
"[La.]
Slide moved a trifle little slow and perhaps a trifle
irregular"
"Mirror and objective dusted off. Plumb line all right."
"Record
of the Transit of Venus Station at Santiago de Chile, 1882.
"Stars
this evening are extremely steady..."
David
P. Todd of Amherst College Observatory writes Asaph Hall about the duplicate
records of observations of the Transit of Venus, 1882, from the Lick
Observatory.
Piece
of plumb-line wire used at the Lick Observatory, 1882.
Observations
of the Transit of Venus made at the Lick Observatory, by David P. Todd.
"With
the compliments of Professor Todd..."
"Packing
list for Lick Tr. of V. negatives"
"Thus
have we concluded the sun photos at this Station and commence to pack for
Home."
