▁give ▁a ▁d ive ▁display . ▁ ▁These ▁birds ▁visit ▁small ▁flowers , ▁including ▁those ▁ignored ▁by ▁other ▁species , ▁and ▁will ▁also ▁take ▁tiny ▁insect s . ▁They ▁are ▁frequently ▁ch ased ▁off ▁by ▁larger ▁hum ming bird s . ▁ ▁References ▁▁▁ ▁St iles ▁and ▁Sk utch , ▁A ▁guide ▁to ▁the ▁birds ▁of ▁Costa ▁Rica ▁▁ ▁garden ▁emer ald ▁Category : B ird s ▁of ▁Costa ▁Rica ▁Category : B ird s ▁of ▁Pan ama ▁garden ▁emer ald ▁garden ▁emer ald <0x0A> </s> ▁ 2 3 6 8 ▁B elt rov ata , ▁prov is ional ▁design ation ▁, ▁is ▁an ▁ecc ent ric ▁st ony ▁astero id ▁and ▁near - E arth ▁object ▁of ▁the ▁Am or ▁group , ▁approximately ▁ 2 . 7 ▁kilom eters ▁in ▁diameter . ▁It ▁was ▁discovered ▁on ▁ 4 ▁September ▁ 1 9 7 7 , ▁by ▁Swiss ▁astronom er ▁Paul ▁Wild ▁at ▁Z immer wald ▁Observ atory ▁near ▁Bern , ▁Switzerland . ▁The ▁astero id ▁was ▁named ▁for ▁Betty ▁T ender ing , ▁a ▁friend ▁of ▁author ▁Gott fried ▁K eller . ▁ ▁Or bit ▁and ▁classification ▁▁ ▁B elt rov ata ▁or bits ▁the ▁Sun ▁in ▁the ▁inner ▁main - b elt ▁at ▁a ▁distance ▁of ▁ 1 . 2 – 3 . 0   AU ▁once ▁every ▁ 3 ▁years ▁and ▁ 1 ▁month ▁( 1 , 1 1 6 ▁days ). ▁Its ▁orbit ▁has ▁an ▁ecc ent ric ity ▁of ▁ 0 . 4 1 ▁and ▁an ▁incl ination