† photohelioscopen.
Astronomy. Obsolete.
= photoheliograph n.
ΘΚΠ
the world > the universe > cosmology > science of observation > astronomical instruments > observational instruments > [noun] > sun
helioscope1675
heliostat1747
photoheliograph1862
photohelioscope1864
coronagraph1885
spectroheliograph1892
spectrohelioscope1906
spectroheliometer1973
1864 J. F. W. Herschel Outl. Astron. (ed. 7) vi. 261 Photographic representations of the spots have been made..with a ‘photohelioscope’ at Kew.
1876 Rep. Commissioners of US to Internat. Exhib. (US Commission to Vienna Exhib., 1873) 9 I found it in the German division, under Group XIV, Scientific Instruments. There were exhibited..a photo-microscope and photo-helioscope.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online June 2018).
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n.1864- to live the life of riley
- to live through
- to live to fight another day
- to live to regret
- to live to regret something
- to live to see the day
- to live to tell the tale
- to live to —— another day
- to live together
- to live up
- to live up to
- to live up to a person's expectation
- to live up to a person's expectations
- to live up to expectation
- to live up to expectations
- to live up to one's name
- to live upon capital
- to live upon one's capital
- to live upon one's own
- to live upon one's purchase
- to live upon the shark
- to live well
- to live with
- to live with oneself
- to live within one's means