From
Don PARKER
@･････Here are some more Mars images. Best,
(30 May 2001 email)
@. . . . . . . . .
. Here are some Mars images from 30 May taken under dismal conditions. Best,
(31 May 2001 email)
D.C. Parker,
Eyepiece
Projection @ f/43.7 Paramount GT 1100S
Mount
Integration Times:
BLUE (Koheisha,
445nm peak central; BWHM 105nm) 24.0s
GREEN (Koheisha,
540nm peak central; BWHM 75nm) 12.0
RED (RG610 - No
IR Rejection)
1.4-4.0s
Images flat and dark corrected.
Conditions horrible: Seeing poor (4-5,
and variable = 0-3m due to high haze and frequent clouds.
Wind S 0-5 kts.
Altitude = 38-36 degrees. Light dew.
Bright AM limb arc. SPH bright and but tenuous in G and B.
Delicate haze
over Chryse and across MArgaritifer S.
@･････Subject: Edom
Brightening
Dear Masatsugu,
Cc:tparker@mail1.jpl.nasa.gov,RMckim5374@aol.com,haasw@zianet.com,73737.1102@compuserve.com,
sheehans@tds.com, rhill@lpl.arizona.edu, bharris@netpass.com
I am pleased to
report that after two uneventful nights of observing our team here in the
Instruments included two six-inch Newtonian
reflectors and a Meade 12-inch SCT used in conjunction with a monochrome video
camera. A perceptible brightening of
These dramatic variations in brightness were
simultaneously detected by visual observers at the eyepieces of the 6-inch
Newtonians and by those viewing the video monitor. It is notable that they
could not be seen with an 85mm refractor.
Further details and images extracted from the
videotape will be forthcoming in the near future. Meanwhile, I would be
grateful if you would alert other observers to the possibility of repeating
these observations, as calculations suggest that the optimum Sun-Earth-Mars
geometry for specular reflections at
(
@･････We again observed Mars from the Florida Keys this morning
(8 June 2001 UTD) from 05:40 UT to 08:36 UT. There appeared to be two peaks in
brightening phenomena around
In general, the events of this morning
displayed the same intensity but less frequency than those of 7 June.
Observers included Dan Troiani, Tippy D'Auria,
Scott and Lou Ireland, Carolyn and Mark Peterson, Bob Itzenthaler, and Don
Parker. Instruments were a 6-inch f/8 Newtonian for continuous visual
observation from 05:51-08:36 UT and a 12-inch Meade SCT used in conjunction
with a monochrome video camera, taping from 05:51-08:36 UT.
Observational conditions were very favorable,
with light ESE wind and high cirrus. Seeing was 8 initially, deteriorating to
4-5 as the planet's altitude fell below 30 degrees. Clouds interfered with
observations less than 20% of the time.
We will attempt to make further observations
tomorrow morning (9 June UTD), but the areas of interest will not be favorably
presented until Mars' altitude is less than 30 degrees.
(
@･････This morning (9 June 2001) we observed and video taped Mars
from the Florida Keys continuously from 07:01-09:15 UT.
Observers included Tippy and Patty D'Auria,
Scott Ireland, Carolyn and Mark Collins-Petersen, and Don Parker. Instruments
were a 6-inch f/8 Newtonian for continuous visual observation and a 12-inch
Meade SCT used in conjunction with a monochrome video camera.
Observational conditions were very favorable,
with light ESE. Seeing was 6 initially, deteriorating to 4-5 as the planet's
altitude fell below 30 degrees. However, even during, the last hour of
observation (altitude = 29-17 degrees), the planet's surface features were
easily discernible both visually and on the video monitor. Clouds interfered with
observations more than 50% of the time from
(
Don PARKER ( FL,
dparker@netside.net