Show photographing INQ ASTEROIDS how ilow iia come t to the th AW ald of the astronomer tho the boston scientific society has held hold a meeting ot of unusual interest inter rot at which 8 C chandler tho the eminent astronomer gave the first public presentation of the re mark ablo work now being doz done I 1 0 by mas max wolf at li heidelberg eidelberg he said tho the position of asteroids aeter lu in astronomical astronomic al science is a peculiar and 1 I might say practically a useless ono one BO so faras far as tangible results from their discovery very are concerned the discovery disc disbot oTerY erlof of a is new comet coiner is 13 a matter or of great importance and the increase in their number contributes much to the knowledge of the science but with asteroids they the y must be found in large numbers before 0 they become of especial significance and in that event it haa has always been bee a debated question whether the immense amount of labor required in keeping track of them and performing the necessary computation is really worth the while when the actual results obtained are BO so small there are known to exist by the tile thousands and tens of thousands down to the size of an ordinary rock and to collate and preserve the tile knowledge obtained of them as fast as discovered has been a difficulty well nigh insurmountable but the development of photography in connection with has seemed to open up an opportunity for accomplishing shing something in this lino line if certain whole strips of the heavens could be tracked and a record kept of the observations ions a long step would be taken in solving this problem apropos 0 this matter young max wolf of berg has been making some very unique discoveries he ile uses a small telescope of G 6 inch ginch aperture and has deviated a piece of mechanism by which ho he can not only follow the heavens for a number of hours together but can call put away the plate take it the next night and continue continuo the record consecutively fro from the point where lie left off this continual m exposure 1111 suro of the same glass night after night llight has hitherto been regarded as impossible and wolf was scoffed at when he attempted it but he has succeeded nevertheless by this process he has been enabled to discover asteroids by observing their motions moreover he be does not use clockwork his ilis plates are exposed and he keeps hia his instrument fixed for hours together on a given point by means ofa subsidiary telescope in this way he haa has discovered seven new asteroids and found between thirty and forty old ones and thinks also that ho he lias has discovered a now comet though that has haa not been fully demonstrated as yet he ile has also discovered the tracks of meteors and haa has found a succession of variations of their light by means of duplicate du plicato impressions with different tel ee er copes recording five or six distinct oscillations in brightness his me duplicate impressions agree perfectly wolf is ii now trying to find the companion of algol 11 boston advertiser |