First of all, I must say that I have been inter­est­ed in astron­o­my since child­hood, but in the 90s it was not pos­si­ble to pur­chase a tele­scope. In the 2000s, inter­est in astron­o­my was lim­it­ed to watch­ing Dis­cov­ery Chan­nel films, and the dream of a tele­scope was for­got­ten due to every­day wor­ries — study, work, etc.

And when inter­est in astron­o­my sud­den­ly flared up, I began to choose a tele­scope, read forum arti­cles, etc. Final­ly I chose a tool for a bal­cony and rare trips out of town — Sky-Watch­er BK909AZ3.

After a while, the Sky-Watch­er BK909AZ3 tele­scope I ordered came with com­plete 10mm and 25mm eye­pieces. I also ordered Sky-Watch­er eye­pieces 6.3 mm super-splash — for plan­ets and 20 mm wide-angle 66 degrees, for star clus­ters, neb­u­lae, galax­ies, and also ordered a 2x Sky-Watch­er bar­low lens and a solar fil­ter.

From the bal­cony, obser­va­tions of the plan­ets, the Moon and the Sun with the Sky-Watch­er BK909AZ3 tele­scope were suc­cess­ful, but it was not pos­si­ble to see deep space objects, since I expect­ed to see them brighter than they were in real­i­ty, and besides, the obser­va­tion con­di­tions from the bal­cony aggra­vat­ed by the con­struc­tion site with pow­er­ful search­lights. In the future, I still under­stood how objects out­side the solar sys­tem look like.

Now a descrip­tion of what I saw.

Ini­tial­ly, obser­va­tions were made from the bal­cony of the 8th floor, with access to the west, the out­skirts of the city, under the win­dows there was a con­struc­tion site with search­lights. There is no obser­va­tion­al expe­ri­ence.

1. Moon. Time of obser­va­tion: win­ter, spring.

Eye­piece 6.3 mm — in my opin­ion, the eye­piece cap­tures a third or a lit­tle more of the sur­face of the moon, you can con­sid­er craters and oth­er relief ele­ments sep­a­rate­ly. Slight chro­ma­tism is notice­able.

Eye­piece 10 mm (includ­ed with the tele­scope) — the sur­face is almost as detailed as in 6.3 mm, but the view­ing angle is much larg­er. There is also less chro­ma­tism, I would say almost none, in con­trast to the 6.3 mm super-glare eye­piece.

Eye­piece 20mm wide-angle chic panora­ma of the moon, every­thing is very clear.

25mm eye­piece (includ­ed with the tele­scope) — there are no big dif­fer­ences from the 25mm wide-angle eye­piece.

2. The Great Neb­u­la of Ori­on (M42). Time of obser­va­tion: late win­ter, ear­ly spring.

Very bright, the con­tours of the neb­u­la and some struc­ture are clear­ly vis­i­ble.

Eye­piece 6.3 mm — the neb­u­la occu­pies almost the entire field of the eye­piece. the trape­zoid is per­fect­ly resolved into indi­vid­ual stars.

Eye­piece 20mm wide-angle chic panora­ma of stars and neb­u­lae, the trape­zoid is resolved as expect­ed.

3. Pleiades (M45), Hyades, Chi-Ash Perseus (NGC 869 NGC 884). Time of obser­va­tion: late win­ter, ear­ly spring.

The 20mm wide-angle eye­piece and the 25mm eye­piece showed chic starfields with approx­i­mate­ly the same qual­i­ty, it is impos­si­ble to take your eyes off. In eye­pieces of 10 mm and 6.3 mm it is not inter­est­ing, since the view­ing angle is small.

4. Jupiter. Time of obser­va­tions late win­ter spring.

There are no big dif­fer­ences between the 20mm wide-angle eye­piece and the 25mm eye­piece. They show a small disk and two bands with­out details and 4 satel­lites.

The 6.3mm eye­piece is the same as the 20mm but larg­er and more inter­est­ing.

A 10mm eye­piece is between 20mm and 6.3mm, not inter­est­ing.

5. Sat­urn. Time of obser­va­tion: late spring.

The 20mm wide angle eye­piece and the 25mm eye­piece set show a small yel­low disc with rings.

Eye­piece 6.3mm is good. The rings and the gap between the plan­et and the rings are vis­i­ble. A slight chro­ma­tism could be seen.

The 10 mm eye­piece, odd­ly enough, proved to be bet­ter than the 6.3 mm. It is pos­si­ble that the heat flux­es from the house did not affect the image so much at a low­er mag­ni­fi­ca­tion. Chro­ma­tism was not notice­able.

6. Clus­ter M44. Time of obser­va­tion: spring. The find­er looks quite com­pact. Found in the sky as fol­lows. Cas­tor and Polux drove into the find­er a lit­tle and turned the tele­scope a lit­tle to the left until in the find­er he noticed a beau­ti­ful com­pact­ly open clus­ter of stars.

7. Sun. Time of obser­va­tion: win­ter, spring.

Eye­pieces 6.3 mm angle too small

Eye­pieces 10mm, 20mm (wide angle) and 25mm spots are excel­lent, you can see the details in the spots (some­thing like changes in the uni­for­mi­ty of the relief around sunspots).

M3 is the first glob­u­lar clus­ter I have seen. The search was car­ried out along the star chain from Segi­nus down. It looks like a hazy spot, brighter in the cen­ter with a sharp decrease in bright­ness towards the edge. It is best to observe it with periph­er­al vision.

M5 — it seemed to me very sim­i­lar to the M3, but dim­mer. The search was car­ried out along the star chain from Unukalhai.

M13 — A large clus­ter of Her­cules and M92 looked much brighter and more attrac­tive than M3 and M5. When observed in mid-Sep­tem­ber, the bright­ness increased, per­haps the state of the atmos­phere was very good, sparks were felt at the edges and a very bright cen­ter was dis­tin­guished.

M31 — the Androm­e­da galaxy — a rather large oval-shaped hazy spot — it was a bright cen­ter, with­out any spi­ral struc­ture. Found her climb­ing up from Mirach.

Depar­ture under the dark sky about 40 km from the city in a straight line. In fact, the foothills of the Ural Moun­tains. The bor­der of the green and blue zones, judg­ing by the light map. The Milky Way is clear­ly vis­i­ble at the zenith, it is not dis­tin­guish­able near the hori­zon. The illu­mi­na­tion from Ufa does not rise high, it does not inter­fere with obser­va­tions. Obser­va­tion time mid-August.

M3, M13, M92 looked much brighter and more inter­est­ing than from the city. M13 and M92, as if sparkling at the edges with aster­isks.

M31 — the Androm­e­da galaxy — a bright cen­tral part and a grad­ual decrease in bright­ness towards the edges were notice­able, the struc­ture of the arms, of course, was not vis­i­ble, but the “gen­er­al galac­tic struc­ture” was vis­i­ble.

M32 was vis­i­ble as a bright fog­gy spot

Hi-Ash Perseus (NGC 869 NGC 884) and Pleiades (M45) looked amaz­ing. By the way, the Pleiades in the Sky-Watch­er 20mm 66 degree eye­piece field do not fit com­plete­ly.

M33 — For some rea­son, it was not pos­si­ble to detect a galaxy in a tri­an­gle.

At the end of sum­mer and autumn, in con­di­tions of strong illu­mi­na­tion by the search­lights of the con­struc­tion site, I observed the fol­low­ing objects from the bal­cony with the eye­piece Sky-Watch­er 20mm 66 degrees.

M11 — The Wild Ducks Clus­ter is observed dim­ly as 3 or more small stars, with a slight hint of neb­u­la. It is bet­ter to observe with periph­er­al vision.

M15 and M2 are clear­ly vis­i­ble glob­u­lar clus­ters in my opin­ion. in mid-Sep­tem­ber, a bright cen­ter and spark­ing along the edges are vis­i­ble.

M29 — Open clus­ter. 6–8 stars are lined up in a trape­zoid shape, against the back­ground of a cloudy fog­gy struc­ture.

M56 — Looks like M5 and M3 to me, but dim­mer.

M57 is the plan­e­tary neb­u­la “Ring”. The first plan­e­tary neb­u­la I saw. Vis­i­ble as a rel­a­tive­ly large (com­pared to sur­round­ing stars) and bright spot. It is bet­ter to look with periph­er­al vision. When observed in mid-Sep­tem­ber, the con­trast increased, with periph­er­al vision, a ring struc­ture seemed to be vis­i­ble.

M27 — Plan­e­tary neb­u­la “Dumb­bell”. very large fog­gy spot. The struc­ture of the neb­u­la is guessed. When observed in mid-Sep­tem­ber, the con­trast increased.

M71 — Glob­u­lar clus­ter. Very dim non-con­trast­ing spot, dim­mer than M56.

M94 — Dim fog­gy spot.

M39 — Observed in the first decade of Novem­ber, a beau­ti­ful open clus­ter, 20–30 stars are observed, more with periph­er­al vision. The clus­ter fits well in the field of view of the Sky-Watch­er 20mm 66deg eye­pieces.

The “Hang­er” clus­ter is a very beau­ti­ful aster­ism, best observed with a find­er­scope.

M31 — the Androm­e­da galaxy in late autumn looked like a large bright con­trast­ing hazy spot. And her satel­lite M32 looked like a small bright fog­gy spot.

M101, M110, M51, M63, M33 could not be seen either with lat­er­al or even more so with direct vision.

Also could not see the Veil Neb­u­la, the Cres­cent Neb­u­la, the Cocoon Neb­u­la.

Dou­ble stars Heart of Karl, omicron1 and omicron2 Cygnus, Albe­rio, Lyra delta, Lyra epsilon look great in the tele­scope (it’s impos­si­ble to divide into four com­po­nents by itself).


1. The 10mm eye­piece sup­plied with the tele­scope per­formed sur­pris­ing­ly well, although I read a lot of neg­a­tive reviews about it.

2. The 20mm wide angle eye­piece gives a very nice pic­ture.

3. The 25 mm eye­piece sup­plied with the tele­scope, in my opin­ion, shows no worse than the 20 mm wide-angle.

4. For a tele­scope, it is advis­able to pur­chase an inex­pen­sive eye­piece with a focal length of more than 30mm to get a wider field of view.

5. Do not chase for a large increase. For starters, com­plete eye­pieces are enough.

6. In a tele­scope, in any eye­piece, the stars look like clear points of dif­fer­ent bright­ness. At high mag­ni­fi­ca­tions, heat flows from the house inter­fere, the pic­ture fluc­tu­ates, the stars peri­od­i­cal­ly become shag­gy.

7. Azimuthal mount AZ3, which is sup­plied with this tele­scope, is very con­ve­nient, has mech­a­nisms for fine move­ments, makes it easy to aim at an object and accom­pa­ny it.

8. It is high­ly desir­able to get out of the city for astro­nom­i­cal obser­va­tions, where the tele­scope ful­ly real­izes its poten­tial.

I have nev­er regret­ted pur­chas­ing the Sky-Watch­er BK909AZ3. I had a lot of fun watch­ing.

It is very inter­est­ing to observe, I rec­om­mend to every­one who does not have a tele­scope to pur­chase. Get a lot of plea­sure from observ­ing objects locat­ed out­side of our plan­et. What is worth observ­ing the Moon or the very real­iza­tion that objects of obser­va­tion of unimag­in­able sizes are at an unimag­in­able dis­tance from us and that they are avail­able for obser­va­tion. Pos­i­tive emo­tions are also caused by sim­ply look­ing at the night sky at a small increase, while count­ing time is lost.

Exam­ples of videos in this tele­scope (the pic­ture is shak­ing because I hold the cam­era in my hands, and the mag­ni­fi­ca­tion is too high, in real­i­ty the pic­ture is much clear­er and more sta­ble)