Erj-190 flight crew reported a near midair collision with a drone during the descent phase of flight...

Attributes
ACN	1561150
Time
Date	201807
Local Time Of Day	1201-1800
Place
Locale Reference	ZBW.ARTCC
State Reference	NH
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	EMB ERJ 190/195 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR ORW7
Flight Plan	IFR
Aircraft 2
Make Model Name	UAV - Unpiloted Aerial Vehicle
Flight Plan	None
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Conflict NMAC Deviation - Procedural FAR Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 0 Vertical 20

Narrative:

While descending through 19;200 feet MSL on the ORW7 arrival into bos; I saw what I thought was a balloon coming towards our aircraft. A few seconds later as we flew directly under it; missing it by about 10-20 feet; we noticed it was a drone. It was directly above my windshield (the first officer side) and probably about 2 feet wide. We were approx 24NM west of pvd VOR. I immediately notified bos center and they proceeded to vector other aircraft away from that area. Bos center gave us their number to call them on the ground for further information. I called and spoke with bos center managent and provided the information [they] requested in addition to my contact information.

Original NASA ASRS Text

Title: ERJ-190 flight crew reported a NMAC with a Drone during the descent phase of flight.

Narrative: While descending through 19;200 feet MSL on the ORW7 arrival into BOS; I saw what I thought was a balloon coming towards our aircraft. A few seconds later as we flew directly under it; missing it by about 10-20 feet; we noticed it was a drone. It was directly above my windshield (the FO side) and probably about 2 feet wide. We were approx 24NM west of PVD VOR. I immediately notified BOS center and they proceeded to vector other aircraft away from that area. BOS center gave us their number to call them on the ground for further information. I called and spoke with BOS center managent and provided the information [they] requested in addition to my contact information.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.