Re: [capitalastronomers] Pleiades Occultation this (Jan. 9) early pm across N. America; 3.6-mag. Atlas graze over n. DC suburbs and other mid-Atlantic occs updates to Feb.

[James Kaiser]

Hello- I also belong to the National Capital Astronomers. I received
this today. It is about the lunar occultation of the Pleiades early
tonight, and of some asteroidal occultations in the days ahead.

I am sure Mr. Dunham would love to get some accurate timings if you are
so inclined.

Please forgive the terrible formatting. I don't know how to improve it
while posting to the googlegroups list.


- Jim Kaiser

-------- Forwarded Message --------
Subject: [capitalastronomers] Pleiades Occultation this
(Jan. 9) early pm across N. America; 3.6-mag. Atlas graze over n. DC
suburbs and other mid-Atlantic occs updates to Feb.
Resent-Date: Thu, 09 Jan 2025 00:09:11 -0800
Resent-From: dun...@starpower.net
Date: Thu, 9 Jan 2025 03:09:09 -0500 (EST)
From: David Dunham via groups.io <dunham=starpo...@groups.io>
Reply-To: capitalas...@groups.io, dun...@starpower.net
To: capitalastronomers <capitalas...@groups.io>

Details with many links are on the recently updated (thanks, Steve
Conard) mid-Atlantic occultations page at
http://iota.jhuapl.edu/exped.htm <http://iota.jhuapl.edu/exped.htm> .
Below is a list of the Pleiades occultations for the Washington, DC
region; times will be earlier farther west, with predictions on
Robinson’s lunar page, link given in the Web site. Use fixed space font
for the columns to line up properly. Note that there are still many
possible close doubles awaiting confirmation or refutal. Note that you
need to add 5h to EST to obtain U.T. It looks like it will be very
clear, but cold, for the passage across the mid-Atlantic, but rather
cloudy in most other parts of N. America where the occultations occur
after nautical twilight.

*2025 *

*Date Day EST Ph Star Mag % alt CA Sp. Notes*

**

*Jan 9 Thu 0:11 D ZC 425 7.1 74+ 31 13N K0 *

*Jan 9 Thu 1:33 D 47 Arietis 5.8 74+ 16 60N F5 ZC 435*

*Jan 9 Thu 18:59 D Electra 3.7 82+ 65 39N B6 ZC 537, spec. binary*

*Jan 9 Thu 19:29 D Merope 4.1 82+ 70 76S B6 ZC 545, close dbl?*

*Jan 9 Thu 19:39 D SAO 76167 7.6 82+ 71 53N K2 mag2 8.1, dTime +9s *

*Jan 9 Thu 19:52 D ZC 546 7.3 82+ 73 45N A0 close double??*

*Jan 9 Thu 20:07 D 24 Tauri 6.3 82+ 74 89S A0 ZC 549, spec. binary*

*Jan 9 Thu 20:11 D Alcyone 2.9 82+ 74 84S B7 ZC 552, close
doubele?*

*Jan 9 Thu 20:21 D ZC 553 6.8 82+ 75 60N A0 spectroscopic
binary?*

*Jan 9 Thu 20:24 D ZC 551 7.3 82+ 75 30S B9 mag2 9.4 dTime -28s*

*Jan 9 Thu 20:55 D ZC 557 7.0 82+ 75 68N A1 close triple??*

*Jan 9 Thu 21:18 D Plieone 5.1 82+ 73 54S B7 ZC 561, spec. binary*

*Jan 9 Thu 21:22 D SAO 76234 7.5 82+ 73 71N A0 mag2 12 dTime +114s*

*Jan 9 Thu 21:24 D ZC 562 6.6 82+ 73 76N B9 close double?*

*Jan 9 Thu 21:28 R Alcyone 2.9 82+ 72 -58S B7 AA 241,ZC 552,dbl?*

*Jan 9 Thu 21:42 D SAO 76249 7.5 82+ 70 89S A0 *

*Jan 9 Thu 22:05 D SAO 76259 7.4 83+ 67 70N A2 close double*

*Jan 10 Fri 1:50 D ZC 587 6.2 84+ 25 25S K0*

Notice that 3.6-mag. Atlas (= ZC 560) is not in the list because it is
not occulted in Washington, DC, with its southern limit passing only
about 20 miles to the north. From that path, which passes over or near
Ashburn, VA; n. Rockville, Fulton, n. Savage, n. BWI airport, and
Sparrows Point, MD; and s. Vineland and far south Beach Haven, NJ. The
predicted profile, a Google Earth file, and other details are on
the Web
site. Winter conditions might make travel difficult, but some might
live
in the wide path. Also there is a link to analysis of our observations
of a graze of Spica that we recorded last November from Texas.

Also on the Web site is a map of the brighter asteroidal occultations
across the mid-Atlantic region through early February. That map is
attached, and a list of those events is below. Much more is on the
Web site.

*2025 Star Asteroid dur. Ap.*

*Date Day EST Name Mag. # Name dmag s " Path*

**

*Jan 12 Sun 19:35 SAO 129880 9.0 43807 1991 RC11 9 1.2 4 TN-DE ?*

*Jan 18 Sat 19:31 XZ 91444 10.1 8456 Davegriep 8 1.5 4 VA-NC*

*Jan 29 Wed 1:11 HIP 49540 9.2 4231 Fireman 8 1.4 3 NJ-OH*

*Feb 4 Tue 20:34 SAO 93614 7.6 1529 Oterma 8 5 2 KY-MA*

*Feb 4 Tue 22:19 64 Arietis 5.2 7999 Nesvorny 13 1.8 2
OH-DC-seMD*

*Feb 5 Wed 21:54 SAO 76839 8.6 9327 Duerbeck 10 11 3 Cape
Hat*-MA*

*Feb 6 Thu 4:08 PPM 128072 9.6 520 Fraziska 6 2.5 4 NC-KY*

David


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