[vsnet-chat 689] (fwd) Nova(?) Plassen 1927 (Hazen)

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

From owner-vsnet-adm@kusastro.kyoto-u.ac.jp Wed Dec 17 06:05 JST 1997
From: "Martha Hazen" <hazen@cf4.harvard.edu>
Organization: Center for Astrophysics
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The message below, which I think is important, was returned to me.  I 
am a subscriber to vsnet - why can't I post messages on vsnet??

Martha Hazen





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You can't send message to this mailing list. Only addresses listed in
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Please send request to <vsnet-adm@kusastro.kyoto-u.ac.jp>, instead.

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From: "Martha Hazen" <hazen@cf4.harvard.edu>
Organization: Center for Astrophysics
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Subject: [vsnet 0] Nova(?) Plassen 1927
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        Search of Harvard Plates for Nova (?) Plassen 1927

Harvard College Observatory has several plates taken of the region
of Camelopardalis in which Plassen reported his nova.  The chart
provided in L'Astronomie, 53, 9, 1929, is very poor, but a 
plausible identification of chart with images on the plates
is possible.  It should be noted that this identification requires
a switch in east-west from that published - I assume that O stands
for west ("ouest"), and this seems to be really east.

Nothing suspicious appears on three plates taken in October 1927, 
one near the beginning, one in the middle and one near the end of 
the month.  On one of the plates I found markings "2," "3," 
and "9?," corresponding to the numbers on the 1929 chart.  
This suggests that sometime, probably shortly after the article 
appeared in L'Astronomie, a researcher here at Harvard also 
tried unsuccessfully to find the "nova."

The announcement in 1929 mentions plates in France on which the
"nova" appears.  Perhaps these plates still exist and can be 
consulted.  A more accurate finding chart, made from a plate,
would be extremely useful in locating the object Plassen seems 
to have seen.

Martha L. Hazen
Curator of Astronomical Photographs
Harvard College Observatory

mhazen@cfa.harvard.edu

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