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Log

Page	Plate	Class	Object	R.A.	Dec	Start	Obs H.A.	Obs Dec	Stop	Exp	Date	Miscellaneous
30	42639	L	Meteors	13 30		21 48	1 37 E	+45	23 29	101	Apr 21-22 1950	Shutter - at 22 00 - 1726 RPM. Meteor -1 mag. Yellow, Med. Star - only last portion seen - 10° S of Polaris - 11 to and 8° W of β + γ Ursa Minoris. 22 20 47 REM. Meteor: 23 23 05, -1 1/2, slightly yellow, med speed, 1-2s train and broad. Thru γ and κ Corona Bor. E > W. Lyrid? REM + PSC.
30	42640	L	Meteors	15 00		23 31	1 24 E	+45	00 59	88	Apr 21-22 1950
30	42641	L	Meteors	16 30		01 01	1 24 E	+45	02 29		Apr 21-22 1950	Shutter * 1710 at 01 15, steady. Shutter 1720 at 02 03, steady. 01 45 38 - Meteor 8° S of Vega 2° long - 0 or -1 mag. Lyrid, Yellowish. 01 48 50 - 30° long - 0 mag. 1/2s train, yellow, not a Lyrid, from γ Draconis to α Cygni. 02 13 59 - Meteor, 0, white, Lyrid, possibly train, 10-15°, due N of radient.
30	42642	L		18 00		02 31	1 24 E	+45			Apr 21-22 1950	Shutter 1720 RPM. * Shutter speed not measured between 22 00 and 01 15 - assumed by the radical change in speed took place shortly after start of first plate. Other possibility is change in Strob. It was calibrated for both readings but the correction to be applied differed by 40 rpm between the two calibration. (cont. Next Page)