Weeding down a big target list - Revision history

Rebull at 23:26, 21 January 2008

2008-01-21T23:26:12Z

2008-01-21T23:00:06Z

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← Older revision		Revision as of 23:26, 21 January 2008
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	I think you're right, this is probably a good way to get at how opaque the cloud is.		I think you're right, this is probably a good way to get at how opaque the cloud is.
	here's the graphic:[[media:cris_opacity.png]]		here's the graphic:[[media:cris_opacity.png]]
−
−	~~--[[User:Rebull\|Rebull]] 14:19, 21 January 2008 (PST) but really from jan 20: tim sent this in email:~~
−	~~I have been doing some looking at the Lynds targets. I'm attaching pics of LDN 1598 and LDN 1340.~~
−	~~I could not find anything in ADS about either of these targets, so it looks like they have not been~~
−	~~studied a great deal. I like the fact that you have a dark area next to a fairly rich star field~~
−	~~(especially with 1598). This would tend to indicate a dense nebulous area. the images are 5'x5'.~~
−	~~here's the graphics: (L1598 first, then L1340):~~
−	~~[[image:tim_l1598.jpg]] [[image:tim_l1340.jpg]]~~
−
−	~~--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]~~

← Older revision		Revision as of 23:00, 21 January 2008
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	--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]		--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]
−
−	~~--[[User:Dewolf\|Dewolf]] 14:37, 21 January 2008 (PST)I did not think that they looked very impressive in the IRAS images I found. Here is 778 [[image:778_IRAS_jpg]]~~

← Older revision		Revision as of 22:39, 21 January 2008
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	--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]		--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]

−	--[[User:Dewolf\|Dewolf]] 14:37, 21 January 2008 (PST)I did not think that they looked very impressive in the IRAS images I found. Here is 778 [[~~media~~:~~778_IRAS_image~~]]	+	--[[User:Dewolf\|Dewolf]] 14:37, 21 January 2008 (PST)I did not think that they looked very impressive in the IRAS images I found. Here is 778 [[image:778_IRAS_jpg]]

← Older revision		Revision as of 22:37, 21 January 2008
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	--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]		--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]
		+
		+	--[[User:Dewolf\|Dewolf]] 14:37, 21 January 2008 (PST)I did not think that they looked very impressive in the IRAS images I found. Here is 778 [[media:778_IRAS_image]]

← Older revision		Revision as of 22:26, 21 January 2008
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	here's the graphics: (L1598 first, then L1340):		here's the graphics: (L1598 first, then L1340):
	[[image:tim_l1598.jpg]] [[image:tim_l1340.jpg]]		[[image:tim_l1598.jpg]] [[image:tim_l1340.jpg]]
		+
		+	--[[User:Rebull\|Rebull]] 14:26, 21 January 2008 (PST) actually, i get 19 references for ldn 1598, and 15 for L1340, both using simbad... [END]

@@ Line 218: / Line 218: @@
     studied a great deal.  I like the fact that you have a dark area next to a fairly rich star field
     (especially with 1598).  This would tend to indicate a dense nebulous area.  the images are 5'x5'.
-here's the graphics: [[image:tim_l1598.jpg]] [[image:tim_l1340.jpg]]
+here's the graphics: (L1598 first, then L1340):

← Older revision		Revision as of 22:19, 21 January 2008
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	I think you're right, this is probably a good way to get at how opaque the cloud is.		I think you're right, this is probably a good way to get at how opaque the cloud is.
	here's the graphic:[[media:cris_opacity.png]]		here's the graphic:[[media:cris_opacity.png]]
		+
		+	--[[User:Rebull\|Rebull]] 14:19, 21 January 2008 (PST) but really from jan 20: tim sent this in email:
		+	I have been doing some looking at the Lynds targets. I'm attaching pics of LDN 1598 and LDN 1340.
		+	I could not find anything in ADS about either of these targets, so it looks like they have not been
		+	studied a great deal. I like the fact that you have a dark area next to a fairly rich star field
		+	(especially with 1598). This would tend to indicate a dense nebulous area.
		+	here's the graphics: [[image:tim_l1598.jpg]] [[image:tim_l1340.jpg]]

← Older revision		Revision as of 22:16, 21 January 2008
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	Talk with you soon.		Talk with you soon.
	--chj		--chj
		+
		+
		+	--[[User:Rebull\|Rebull]] 14:16, 21 January 2008 (PST) but really from jan 20: cris sent me this in email:
		+	I don't know how accurate this would be - but here is how I came up with the attached graphic. I opened the
		+	fits file of the three "best" (in my opinion) LDNs with Image J. I did a rectangular selection of what
		+	appeared to be the darkest (visually) area of each LDN (after I first enhanced the contrast a bit. I then did
		+	a histogram of these areas to find the Mean pixel value - thinking that it may show the optically densest
		+	area of the LDN.
		+	If this is true - then 1143 appears to be the best candidate - at least in terms of optical density.
		+	What do you think?
		+	I think you're right, this is probably a good way to get at how opaque the cloud is.
		+	here's the graphic:[[media:cris_opacity.png]]

@@ Line 93: / Line 93: @@
 start leopard.
 query by fixed target list, load the first of your files you just
-created.
+created. (here is an example batch search list: [[media:simbadlist.txt]])
 this will take a while for each leopard search file. when it is
 done searching, it will ask if you want to load the AORs for each