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Lêer:Percival Lowell observing Venus from the Lowell Observatory in 1914.jpg

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Beskrywing
English: Percival Lowell observing Venus in the daytime from the observer's chair of the 24-inch (61 cm) Alvan Clark & Sons refracting telescope, installed in the summer of 1896 at the Lowell Observatory, which he established in Flagstaff, Arizona (USA). Although known for observing Mars, this image has a long running attribution of "Percival Lowell observing the planet Venus in the daytime",[1] something he did from 1896 onward, observing the planet high in the daytime sky with the telescope's lens stopped down to 3 inches in diameter. This image of an older Lowell was taken in 1914.[2]
Also given a date of October 17, 1914.[3]
Datum
Bron Reconstructed from several online sources by Joe Haythornthwaite
Outeur OnbekendUnknown author
Toestemming
(Hergebruik van die lêer)		 PD because of age

References

  1. ↑ Sources for the image attribution being Our Wonderful Universe: An easy introduction to the study of the heavens by Clarence Augustus Chant, published by G.G. Harrap & Company Ltd. in 1928 (see page 92), and A Passion for the Planets: Envisioning Other Worlds, from the Pleistocene to the Age of the Telescope by William Sheehan, published by Springer in 2010 (see page 35).
  2. ↑ Per User:nagualdesign, date "1914" confirmed by Lowell Observatory Archives, holder of the original glass plate.
  3. ↑ Popular Astronomy , Volume 29; Volume 1921, Goodsell Observatory of Carleton College, 1921, Percival Lowell, "An Afterglow" book review, page 597


Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.

This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Percival Lowell observing Venus through the Alvan Clark & Sons refracting telescope.

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Datum/TydDuimnaelDimensiesGebruikerOpmerking
huidig21:17, 23 April 2017Duimnaelskets vir weergawe vanaf 21:17, 23 April 2017800 × 1 000 (650 KG)NagualdesignReverted to version as of 00:02, 23 November 2014 (UTC). Please upload derivative files separately.
16:54, 26 Maart 2017Duimnaelskets vir weergawe vanaf 16:54, 26 Maart 2017800 × 1 000 (709 KG)Balabinrmps auto
00:02, 23 November 2014Duimnaelskets vir weergawe vanaf 00:02, 23 November 2014800 × 1 000 (650 KG)NagualdesignFurther adjustments.
04:30, 22 Maart 2013Duimnaelskets vir weergawe vanaf 04:30, 22 Maart 2013800 × 1 000 (646 KG)NagualdesignSubtler facial adjustment. Recombined previous uploads.
03:31, 21 Maart 2013Duimnaelskets vir weergawe vanaf 03:31, 21 Maart 2013800 × 1 000 (646 KG)NagualdesignAlterations to subject's head.
03:49, 14 Maart 2013Duimnaelskets vir weergawe vanaf 03:49, 14 Maart 2013800 × 1 000 (641 KG)NagualdesignBetter version. Cleaned and recoloured.
21:42, 26 Januarie 2005Duimnaelskets vir weergawe vanaf 21:42, 26 Januarie 2005400 × 501 (38 KG)RanveigPD because of age. {{PD}} en:Image:Percival Lowell.observing Mars from the Lowell Observatory.jpg

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