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Log

Page	Plate	Class	Object	R.A.	Dec	Start	Obs H.A.	Obs Dec	Stop	Exp	Date	Miscellaneous
26	42623	M		9 55		19 58 30	0 00	+10	20 03 30	5	Apr 19-20 1950	For L Jacchia for extinction measurements. Possible clouds at extreme south of plate.
26	42624	M		10 05		20 06 30	0 00	-20	20 11 30	5	Apr 19-20 1950	For L Jacchia for extinction measurements. Possible clouds at extreme south of plate.
26	42625	L	Meteors	11 50		20 25	1 30 E	+45	21 59	94	Apr 19-20 1950	General Haze; Alcor + Mizar barely separable visually. Shutter, 1712 rpm at 20 20, steady shutter, 1710 rpm at 21 32, steady. Plate oversized - broken in process of removing from holder. Small piece tray develops.
26	42626	L	Meteors	13 20		22 01	1 24 E	+45	23 23	82	Apr 19-20 1950	Shutter, 1712 rpm at 22 52, steady. Reg. Power failed 23 22.
26	42627	L	Meteors	14 50		23 31	1 24 E	+45	00 59	88	Apr 19-20 1950	Shutter, 1711 at 23 35 steady.
26	42628	L	Meteors	16 20		01 01	1 24 E	+45	02 11	70	Apr 19-20 1950	Shutter speed at 01 30 - 1711 RPM. Power failure - 02 12.
26	42629	M		16 25		02 24 30	0 00	+10	02 29 30	5	Apr 19-20 1950	Plates for L. Jacchia for extinction measurements sky > Excellent.
26	42630	M		16 30		02 31 30	0 00	-20	02 36 30	5	Apr 19-20 1950	Plates for L. Jacchia for extinction measurements sky > Excellent.
26	42631	L	Meteors	17 50		02 39	1 16 E	+45	03 59	80	Apr 19-20 1950	Meteor - 03 31 18 - 0 or 1 mag. 8° length - white, Medium speed from λ Herc. to 89 Herc. Shutter - 03 35 - 1710 RPM - Steady.
26	42632	L	Meteors	19 05		04 01	1 09 E	+45	04 44	43	Apr 19-20 1950	Shutter 04 30, 1711 rpm, steady. Dawn. Shutter readings accurate to ± 1 rpm.